155151072 has 48 divisors (see below), whose sum is σ = 452526480. Its totient is φ = 51716736.

The previous prime is 155151053. The next prime is 155151097. The reversal of 155151072 is 270151551.

155151072 is a `hidden beast` number, since 1 + 551 + 5 + 107 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 88923 + ... + 90650.

It is an arithmetic number, because the mean of its divisors is an integer number (9427635).

Almost surely, 2^155151072 is an apocalyptic number.

155151072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155151072 is an abundant number, since it is smaller than the sum of its proper divisors (297375408).

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

155151072 is a wasteful number, since it uses less digits than its factorization.

155151072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179592 (or 179578 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The square root of 155151072 is about 12455.9653178708. The cubic root of 155151072 is about 537.3429973749.

The spelling of 155151072 in words is "one hundred fifty-five million, one hundred fifty-one thousand, seventy-two".