1500145812 has 192 divisors, whose sum is σ = 4408750080. Its totient is φ = 437184000.

The previous prime is 1500145811. The next prime is 1500145847. The reversal of 1500145812 is 2185410051.

1500145812 is a `hidden beast` number, since 1 + 500 + 145 + 8 + 12 = 666.

It is a super-2 number, since 2×1500145812² = 4500874914522278688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1500145811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3740812 + ... + 3741212.

It is an arithmetic number, because the mean of its divisors is an integer number (22962240).

Almost surely, 2^1500145812 is an apocalyptic number.

1500145812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1500145812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2204375040).

1500145812 is an abundant number, since it is smaller than the sum of its proper divisors (2908604268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1500145812 is a wasteful number, since it uses less digits than its factorization.

1500145812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1500145812 is about 38731.7158411553. The cubic root of 1500145812 is about 1144.7513331456.

Adding to 1500145812 its reverse (2185410051), we get a palindrome (3685555863).

The spelling of 1500145812 in words is "one billion, five hundred million, one hundred forty-five thousand, eight hundred twelve".