156020117 has 16 divisors (see below), whose sum is σ = 177292800. Its totient is φ = 136012800.

The previous prime is 156020099. The next prime is 156020143. The reversal of 156020117 is 711020651.

156020117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156020117 - 2¹⁶ = 155954581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156020092 and 156020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156020167) 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, 36509 + ... + 40557.

It is an arithmetic number, because the mean of its divisors is an integer number (11080800).

Almost surely, 2^156020117 is an apocalyptic number.

It is an amenable number.

156020117 is a deficient number, since it is larger than the sum of its proper divisors (21272683).

156020117 is a wasteful number, since it uses less digits than its factorization.

156020117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 156020117 is about 12490.8012953533. The cubic root of 156020117 is about 538.3443999766.

Adding to 156020117 its reverse (711020651), we get a palindrome (867040768).

The spelling of 156020117 in words is "one hundred fifty-six million, twenty thousand, one hundred seventeen".