30533157 has 12 divisors (see below), whose sum is σ = 44422560. Its totient is φ = 20208168.

The previous prime is 30533119. The next prime is 30533161. The reversal of 30533157 is 75133503.

It is not a de Polignac number, because 30533157 - 2¹² = 30529061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30533157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30533117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10953 + ... + 13454.

It is an arithmetic number, because the mean of its divisors is an integer number (3701880).

Almost surely, 2^30533157 is an apocalyptic number.

It is an amenable number.

30533157 is a deficient number, since it is larger than the sum of its proper divisors (13889403).

30533157 is a wasteful number, since it uses less digits than its factorization.

30533157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24552 (or 24549 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 30533157 is about 5525.6815869176. The cubic root of 30533157 is about 312.5531668473.

The spelling of 30533157 in words is "thirty million, five hundred thirty-three thousand, one hundred fifty-seven".