145124850 has 96 divisors (see below), whose sum is σ = 408098880. Its totient is φ = 33834240.

The previous prime is 145124843. The next prime is 145124851. The reversal of 145124850 is 58421541.

It is a super-2 number, since 2×145124850² = 42122444175045000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (145124851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35092 + ... + 39008.

It is an arithmetic number, because the mean of its divisors is an integer number (4251030).

Almost surely, 2^145124850 is an apocalyptic number.

145124850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145124850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204049440).

145124850 is an abundant number, since it is smaller than the sum of its proper divisors (262974030).

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

145124850 is a wasteful number, since it uses less digits than its factorization.

145124850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 145124850 is about 12046.7775774271. Note that the first 3 decimals coincide. The cubic root of 145124850 is about 525.5095280038.

The spelling of 145124850 in words is "one hundred forty-five million, one hundred twenty-four thousand, eight hundred fifty".