155084072 has 64 divisors (see below), whose sum is σ = 352719360. Its totient is φ = 62956800.

The previous prime is 155084071. The next prime is 155084077. The reversal of 155084072 is 270480551.

It is not an unprimeable number, because it can be changed into a prime (155084071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33278 + ... + 37650.

It is an arithmetic number, because the mean of its divisors is an integer number (5511240).

Almost surely, 2^155084072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155084072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176359680).

155084072 is an abundant number, since it is smaller than the sum of its proper divisors (197635288).

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

155084072 is a wasteful number, since it uses less digits than its factorization.

155084072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434 (or 4430 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 155084072 is about 12453.2755530423. The cubic root of 155084072 is about 537.2656380117.

The spelling of 155084072 in words is "one hundred fifty-five million, eighty-four thousand, seventy-two".