30155132 has 24 divisors (see below), whose sum is σ = 61140576. Its totient is φ = 12745728.

The previous prime is 30155129. The next prime is 30155137. The reversal of 30155132 is 23155103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30155137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5333 + ... + 9420.

It is an arithmetic number, because the mean of its divisors is an integer number (2547524).

Almost surely, 2^30155132 is an apocalyptic number.

It is an amenable number.

30155132 is an abundant number, since it is smaller than the sum of its proper divisors (30985444).

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

30155132 is a wasteful number, since it uses less digits than its factorization.

30155132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14837 (or 14835 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 30155132 is about 5491.3688639537. The cubic root of 30155132 is about 311.2579202621.

The spelling of 30155132 in words is "thirty million, one hundred fifty-five thousand, one hundred thirty-two".