156112001 has 8 divisors (see below), whose sum is σ = 161313024. Its totient is φ = 150921360.

The previous prime is 156111997. The next prime is 156112007. The reversal of 156112001 is 100211651.

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 156112001 - 2² = 156111997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156112007) 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, 38591 + ... + 42443.

It is an arithmetic number, because the mean of its divisors is an integer number (20164128).

Almost surely, 2^156112001 is an apocalyptic number.

It is an amenable number.

156112001 is a deficient number, since it is larger than the sum of its proper divisors (5201023).

156112001 is a wasteful number, since it uses less digits than its factorization.

156112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 156112001 is about 12494.4788206631. The cubic root of 156112001 is about 538.4500605596.

Adding to 156112001 its reverse (100211651), we get a palindrome (256323652).

The spelling of 156112001 in words is "one hundred fifty-six million, one hundred twelve thousand, one".