156229001 has 16 divisors (see below), whose sum is σ = 168739200. Its totient is φ = 144188928.

The previous prime is 156228959. The next prime is 156229027. The reversal of 156229001 is 100922651.

It is a cyclic number.

It is not a de Polignac number, because 156229001 - 2²² = 152034697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156229901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167705 + ... + 168633.

It is an arithmetic number, because the mean of its divisors is an integer number (10546200).

Almost surely, 2^156229001 is an apocalyptic number.

It is an amenable number.

156229001 is a deficient number, since it is larger than the sum of its proper divisors (12510199).

156229001 is a wasteful number, since it uses less digits than its factorization.

156229001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 156229001 is about 12499.1600117768. The cubic root of 156229001 is about 538.5845429075.

The spelling of 156229001 in words is "one hundred fifty-six million, two hundred twenty-nine thousand, one".