30133137 has 4 divisors (see below), whose sum is σ = 40177520. Its totient is φ = 20088756.

The previous prime is 30133127. The next prime is 30133141. The reversal of 30133137 is 73133103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30133137 - 2¹⁸ = 29870993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30133127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5022187 + ... + 5022192.

It is an arithmetic number, because the mean of its divisors is an integer number (10044380).

Almost surely, 2^30133137 is an apocalyptic number.

It is an amenable number.

30133137 is a deficient number, since it is larger than the sum of its proper divisors (10044383).

30133137 is a wasteful number, since it uses less digits than its factorization.

30133137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10044382.

The product of its (nonzero) digits is 567, while the sum is 21.

The square root of 30133137 is about 5489.3658103646. The cubic root of 30133137 is about 311.1822252070.

The spelling of 30133137 in words is "thirty million, one hundred thirty-three thousand, one hundred thirty-seven".