145642525 has 24 divisors (see below), whose sum is σ = 208004544. Its totient is φ = 99091200.

The previous prime is 145642517. The next prime is 145642547. The reversal of 145642525 is 525246541.

It is not a de Polignac number, because 145642525 - 2³ = 145642517 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19749 + ... + 26101.

It is an arithmetic number, because the mean of its divisors is an integer number (8666856).

Almost surely, 2^145642525 is an apocalyptic number.

It is an amenable number.

145642525 is a deficient number, since it is larger than the sum of its proper divisors (62362019).

145642525 is a wasteful number, since it uses less digits than its factorization.

145642525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501 (or 6496 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 145642525 is about 12068.2444870826. The cubic root of 145642525 is about 526.1336350306.

The spelling of 145642525 in words is "one hundred forty-five million, six hundred forty-two thousand, five hundred twenty-five".