155116117 has 16 divisors (see below), whose sum is σ = 175891968. Its totient is φ = 135717120.

The previous prime is 155116111. The next prime is 155116123. The reversal of 155116117 is 711611551.

It is an interprime number because it is at equal distance from previous prime (155116111) and next prime (155116123).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155116117 is a prime.

It is a super-2 number, since 2×155116117² = 48122019506315378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155116111) 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, 31492 + ... + 36082.

It is an arithmetic number, because the mean of its divisors is an integer number (10993248).

Almost surely, 2^155116117 is an apocalyptic number.

It is an amenable number.

155116117 is a deficient number, since it is larger than the sum of its proper divisors (20775851).

155116117 is a wasteful number, since it uses less digits than its factorization.

155116117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740.

The product of its digits is 1050, while the sum is 28.

The square root of 155116117 is about 12454.5620958747. The cubic root of 155116117 is about 537.3026405043.

Adding to 155116117 its reverse (711611551), we get a palindrome (866727668).

The spelling of 155116117 in words is "one hundred fifty-five million, one hundred sixteen thousand, one hundred seventeen".