145212504 has 32 divisors (see below), whose sum is σ = 384387120. Its totient is φ = 45556736.

The previous prime is 145212503. The next prime is 145212523. The reversal of 145212504 is 405212541.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145212503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177549 + ... + 178364.

Almost surely, 2^145212504 is an apocalyptic number.

It is an amenable number.

145212504 is an abundant number, since it is smaller than the sum of its proper divisors (239174616).

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

145212504 is a wasteful number, since it uses less digits than its factorization.

145212504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355939 (or 355935 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145212504 is about 12050.4150965848. The cubic root of 145212504 is about 525.6153075938.

The spelling of 145212504 in words is "one hundred forty-five million, two hundred twelve thousand, five hundred four".