156838645 has 8 divisors (see below), whose sum is σ = 190857600. Its totient is φ = 123703440.

The previous prime is 156838639. The next prime is 156838663. The reversal of 156838645 is 546838651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156838645 - 2³ = 156838637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 156838595 and 156838604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220545 + ... + 221254.

It is an arithmetic number, because the mean of its divisors is an integer number (23857200).

Almost surely, 2^156838645 is an apocalyptic number.

It is an amenable number.

156838645 is a deficient number, since it is larger than the sum of its proper divisors (34018955).

156838645 is an equidigital number, since it uses as much as digits as its factorization.

156838645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441875.

The product of its digits is 691200, while the sum is 46.

The square root of 156838645 is about 12523.5236654865. The cubic root of 156838645 is about 539.2841967540.

The spelling of 156838645 in words is "one hundred fifty-six million, eight hundred thirty-eight thousand, six hundred forty-five".