156441601 has 8 divisors (see below), whose sum is σ = 157351040. Its totient is φ = 155535552.

The previous prime is 156441589. The next prime is 156441617. The reversal of 156441601 is 106144651.

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

It is a cyclic number.

It is not a de Polignac number, because 156441601 - 2⁵ = 156441569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156441601.

It is not an unprimeable number, because it can be changed into a prime (156441301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189676 + ... + 190498.

It is an arithmetic number, because the mean of its divisors is an integer number (19668880).

Almost surely, 2^156441601 is an apocalyptic number.

It is an amenable number.

156441601 is a deficient number, since it is larger than the sum of its proper divisors (909439).

156441601 is an equidigital number, since it uses as much as digits as its factorization.

156441601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 156441601 is about 12507.6616919391. The cubic root of 156441601 is about 538.8287382294.

The spelling of 156441601 in words is "one hundred fifty-six million, four hundred forty-one thousand, six hundred one".