155452330 has 24 divisors (see below), whose sum is σ = 307566756. Its totient is φ = 56527680.

The previous prime is 155452327. The next prime is 155452337. The reversal of 155452330 is 33254551.

It can be written as a sum of positive squares in 2 ways, for example, as 147209689 + 8242641 = 12133^2 + 2871^2 .

It is not an unprimeable number, because it can be changed into a prime (155452337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63027 + ... + 65446.

Almost surely, 2^155452330 is an apocalyptic number.

155452330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155452330 is a deficient number, since it is larger than the sum of its proper divisors (152114426).

155452330 is a wasteful number, since it uses less digits than its factorization.

155452330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128502 (or 128491 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 155452330 is about 12468.0523739676. The cubic root of 155452330 is about 537.6905601593.

The spelling of 155452330 in words is "one hundred fifty-five million, four hundred fifty-two thousand, three hundred thirty".