155321088 has 144 divisors (see below), whose sum is σ = 456024576. Its totient is φ = 46632960.

The previous prime is 155321057. The next prime is 155321123. The reversal of 155321088 is 880123551.

It is a happy 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, 469083 + ... + 469413.

Almost surely, 2^155321088 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 155321088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228012288).

155321088 is an abundant number, since it is smaller than the sum of its proper divisors (300703488).

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

155321088 is a wasteful number, since it uses less digits than its factorization.

155321088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 155321088 is about 12462.7881310724. The cubic root of 155321088 is about 537.5392008907.

The spelling of 155321088 in words is "one hundred fifty-five million, three hundred twenty-one thousand, eighty-eight".