155296988 has 48 divisors (see below), whose sum is σ = 343521024. Its totient is φ = 59667840.

The previous prime is 155296961. The next prime is 155296991. The reversal of 155296988 is 889692551.

It is a super-3 number, since 3×155296988³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19031 + ... + 25937.

It is an arithmetic number, because the mean of its divisors is an integer number (7156688).

Almost surely, 2^155296988 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 155296988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171760512).

155296988 is an abundant number, since it is smaller than the sum of its proper divisors (188224036).

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

155296988 is a wasteful number, since it uses less digits than its factorization.

155296988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002 (or 7000 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 53.

The square root of 155296988 is about 12461.8212152157. The cubic root of 155296988 is about 537.5113974868.

The spelling of 155296988 in words is "one hundred fifty-five million, two hundred ninety-six thousand, nine hundred eighty-eight".