30775137 has 4 divisors (see below), whose sum is σ = 41033520. Its totient is φ = 20516756.

The previous prime is 30775123. The next prime is 30775141. The reversal of 30775137 is 73157703.

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 a cyclic number.

It is not a de Polignac number, because 30775137 - 2⁸ = 30774881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30775098 and 30775107.

It is not an unprimeable number, because it can be changed into a prime (30775037) 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, 5129187 + ... + 5129192.

It is an arithmetic number, because the mean of its divisors is an integer number (10258380).

Almost surely, 2^30775137 is an apocalyptic number.

It is an amenable number.

30775137 is a deficient number, since it is larger than the sum of its proper divisors (10258383).

30775137 is a wasteful number, since it uses less digits than its factorization.

30775137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10258382.

The product of its (nonzero) digits is 15435, while the sum is 33.

The square root of 30775137 is about 5547.5343171539. The cubic root of 30775137 is about 313.3766726179.

The spelling of 30775137 in words is "thirty million, seven hundred seventy-five thousand, one hundred thirty-seven".