158225031 has 12 divisors (see below), whose sum is σ = 229548280. Its totient is φ = 105021360.

The previous prime is 158225003. The next prime is 158225047. The reversal of 158225031 is 130522851.

It is a happy number.

158225031 is a `hidden beast` number, since 1 + 582 + 2 + 50 + 31 = 666.

158225031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158225031 - 2⁹ = 158224519 is a prime.

It is a super-2 number, since 2×158225031² = 50070320869901922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158224986 and 158225004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158225051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36325 + ... + 40446.

Almost surely, 2^158225031 is an apocalyptic number.

158225031 is a deficient number, since it is larger than the sum of its proper divisors (71323249).

158225031 is a wasteful number, since it uses less digits than its factorization.

158225031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77006 (or 77003 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 158225031 is about 12578.7531576067. The cubic root of 158225031 is about 540.8685508097.

Adding to 158225031 its reverse (130522851), we get a palindrome (288747882).

The spelling of 158225031 in words is "one hundred fifty-eight million, two hundred twenty-five thousand, thirty-one".