156601113 has 4 divisors (see below), whose sum is σ = 208801488. Its totient is φ = 104400740.

The previous prime is 156601111. The next prime is 156601117. The reversal of 156601113 is 311106651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 156601113 - 2¹ = 156601111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156601111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26100183 + ... + 26100188.

It is an arithmetic number, because the mean of its divisors is an integer number (52200372).

Almost surely, 2^156601113 is an apocalyptic number.

It is an amenable number.

156601113 is a deficient number, since it is larger than the sum of its proper divisors (52200375).

156601113 is an equidigital number, since it uses as much as digits as its factorization.

156601113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52200374.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 156601113 is about 12514.0366389107. The cubic root of 156601113 is about 539.0118107061.

Adding to 156601113 its reverse (311106651), we get a palindrome (467707764).

The spelling of 156601113 in words is "one hundred fifty-six million, six hundred one thousand, one hundred thirteen".