155415165 has 8 divisors (see below), whose sum is σ = 248664288. Its totient is φ = 82888080.

The previous prime is 155415157. The next prime is 155415181. The reversal of 155415165 is 561514551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155415165 - 2³ = 155415157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5180491 + ... + 5180520.

It is an arithmetic number, because the mean of its divisors is an integer number (31083036).

Almost surely, 2^155415165 is an apocalyptic number.

155415165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155415165 is a deficient number, since it is larger than the sum of its proper divisors (93249123).

155415165 is a wasteful number, since it uses less digits than its factorization.

155415165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10361019.

The product of its digits is 15000, while the sum is 33.

The square root of 155415165 is about 12466.5618756737. The cubic root of 155415165 is about 537.6477070172.

It can be divided in two parts, 15541 and 5165, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 155415165 in words is "one hundred fifty-five million, four hundred fifteen thousand, one hundred sixty-five".