158640364 has 12 divisors (see below), whose sum is σ = 280740600. Its totient is φ = 78428768.

The previous prime is 158640337. The next prime is 158640371. The reversal of 158640364 is 463046851.

It is a happy number.

158640364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

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, 222454 + ... + 223165.

It is an arithmetic number, because the mean of its divisors is an integer number (23395050).

Almost surely, 2^158640364 is an apocalyptic number.

It is an amenable number.

158640364 is a deficient number, since it is larger than the sum of its proper divisors (122100236).

158640364 is a wasteful number, since it uses less digits than its factorization.

158640364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445712 (or 445710 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 158640364 is about 12595.2516449653. The cubic root of 158640364 is about 541.3413885264.

The spelling of 158640364 in words is "one hundred fifty-eight million, six hundred forty thousand, three hundred sixty-four".