155104992 has 216 divisors, whose sum is σ = 532186200. Its totient is φ = 42674688.

The previous prime is 155104981. The next prime is 155105051. The reversal of 155104992 is 299401551.

155104992 is a `hidden beast` number, since 15 + 510 + 49 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 409059 + ... + 409437.

It is an arithmetic number, because the mean of its divisors is an integer number (2463825).

Almost surely, 2^155104992 is an apocalyptic number.

155104992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155104992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266093100).

155104992 is an abundant number, since it is smaller than the sum of its proper divisors (377081208).

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

155104992 is a wasteful number, since it uses less digits than its factorization.

155104992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 155104992 is about 12454.1154643756. The cubic root of 155104992 is about 537.2897949988.

It can be divided in two parts, 15510 and 4992, that added together give a palindrome (20502).

The spelling of 155104992 in words is "one hundred fifty-five million, one hundred four thousand, nine hundred ninety-two".