158656345 has 4 divisors (see below), whose sum is σ = 190387620. Its totient is φ = 126925072.

The previous prime is 158656331. The next prime is 158656363. The reversal of 158656345 is 543656851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543656851 = 541 ⋅1004911.

It can be written as a sum of positive squares in 2 ways, for example, as 65108761 + 93547584 = 8069^2 + 9672^2 .

It is a cyclic number.

It is not a de Polignac number, because 158656345 - 2⁵ = 158656313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15865630 + ... + 15865639.

It is an arithmetic number, because the mean of its divisors is an integer number (47596905).

Almost surely, 2^158656345 is an apocalyptic number.

It is an amenable number.

158656345 is a deficient number, since it is larger than the sum of its proper divisors (31731275).

158656345 is an equidigital number, since it uses as much as digits as its factorization.

158656345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31731274.

The product of its digits is 432000, while the sum is 43.

The square root of 158656345 is about 12595.8860347337. The cubic root of 158656345 is about 541.3595656704.

The spelling of 158656345 in words is "one hundred fifty-eight million, six hundred fifty-six thousand, three hundred forty-five".