158290625 has 24 divisors (see below), whose sum is σ = 203346360. Its totient is φ = 123210000.

The previous prime is 158290591. The next prime is 158290637. The reversal of 158290625 is 526092851.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

158290625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 141871921 + 16418704 = 11911^2 + 4052^2 .

It is not a de Polignac number, because 158290625 - 2⁸ = 158290369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4278107 + ... + 4278143.

It is an arithmetic number, because the mean of its divisors is an integer number (8472765).

Almost surely, 2^158290625 is an apocalyptic number.

It is an amenable number.

158290625 is a deficient number, since it is larger than the sum of its proper divisors (45055735).

158290625 is an frugal number, since it uses more digits than its factorization.

158290625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 158290625 is about 12581.3602205803. The cubic root of 158290625 is about 540.9432815694.

The spelling of 158290625 in words is "one hundred fifty-eight million, two hundred ninety thousand, six hundred twenty-five".