30155235 has 32 divisors (see below), whose sum is σ = 52980480. Its totient is φ = 14524800.

The previous prime is 30155227. The next prime is 30155239. The reversal of 30155235 is 53255103.

It is not a de Polignac number, because 30155235 - 2³ = 30155227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30155239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29025 + ... + 30045.

It is an arithmetic number, because the mean of its divisors is an integer number (1655640).

Almost surely, 2^30155235 is an apocalyptic number.

30155235 is a deficient number, since it is larger than the sum of its proper divisors (22825245).

30155235 is a wasteful number, since it uses less digits than its factorization.

30155235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 30155235 is about 5491.3782422995. The cubic root of 30155235 is about 311.2582746465.

The spelling of 30155235 in words is "thirty million, one hundred fifty-five thousand, two hundred thirty-five".