155117260 has 24 divisors (see below), whose sum is σ = 325994256. Its totient is φ = 61999680.

The previous prime is 155117243. The next prime is 155117269. The reversal of 155117260 is 62711551.

It is a super-2 number, since 2×155117260² = 48122728699815200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155117269) 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, 37495 + ... + 41425.

It is an arithmetic number, because the mean of its divisors is an integer number (13583094).

Almost surely, 2^155117260 is an apocalyptic number.

155117260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155117260 is an abundant number, since it is smaller than the sum of its proper divisors (170876996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155117260 is a wasteful number, since it uses less digits than its factorization.

155117260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5913 (or 5911 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 155117260 is about 12454.6079825902. The cubic root of 155117260 is about 537.3039602369.

The spelling of 155117260 in words is "one hundred fifty-five million, one hundred seventeen thousand, two hundred sixty".