155381064 has 32 divisors (see below), whose sum is σ = 389004000. Its totient is φ = 51720192.

The previous prime is 155381053. The next prime is 155381081. The reversal of 155381064 is 460183551.

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, 14247 + ... + 22665.

It is an arithmetic number, because the mean of its divisors is an integer number (12156375).

Almost surely, 2^155381064 is an apocalyptic number.

It is an amenable number.

155381064 is an abundant number, since it is smaller than the sum of its proper divisors (233622936).

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

155381064 is a wasteful number, since it uses less digits than its factorization.

155381064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9197 (or 9193 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 155381064 is about 12465.1941019785. The cubic root of 155381064 is about 537.6083808129.

The spelling of 155381064 in words is "one hundred fifty-five million, three hundred eighty-one thousand, sixty-four".