1500812145 has 80 divisors (see below), whose sum is σ = 3174048768. Its totient is φ = 663914880.

The previous prime is 1500812119. The next prime is 1500812153. The reversal of 1500812145 is 5412180051.

1500812145 is a `hidden beast` number, since 1 + 500 + 8 + 12 + 145 = 666.

It is not a de Polignac number, because 1500812145 - 2⁷ = 1500812017 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 79347 + ... + 96423.

Almost surely, 2^1500812145 is an apocalyptic number.

1500812145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1500812145 is an abundant number, since it is smaller than the sum of its proper divisors (1673236623).

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

1500812145 is a wasteful number, since it uses less digits than its factorization.

1500812145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17132 (or 17123 counting only the distinct ones).

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

The square root of 1500812145 is about 38740.3167901348. The cubic root of 1500812145 is about 1144.9207994899.

Adding to 1500812145 its reverse (5412180051), we get a palindrome (6912992196).

The spelling of 1500812145 in words is "one billion, five hundred million, eight hundred twelve thousand, one hundred forty-five".