30452155 has 12 divisors (see below), whose sum is σ = 38569392. Its totient is φ = 23078160.

The previous prime is 30452143. The next prime is 30452159. The reversal of 30452155 is 55125403.

It is not a de Polignac number, because 30452155 - 2⁷ = 30452027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30452159) 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, 6631 + ... + 10240.

It is an arithmetic number, because the mean of its divisors is an integer number (3214116).

Almost surely, 2^30452155 is an apocalyptic number.

30452155 is a deficient number, since it is larger than the sum of its proper divisors (8117237).

30452155 is a wasteful number, since it uses less digits than its factorization.

30452155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16914 (or 16895 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 30452155 is about 5518.3471257252. The cubic root of 30452155 is about 312.2765292995.

Adding to 30452155 its reverse (55125403), we get a palindrome (85577558).

The spelling of 30452155 in words is "thirty million, four hundred fifty-two thousand, one hundred fifty-five".