30653137 has 4 divisors (see below), whose sum is σ = 32266480. Its totient is φ = 29039796.

The previous prime is 30653111. The next prime is 30653143. The reversal of 30653137 is 73135603.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73135603 = 31 ⋅2359213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30653137 is a prime.

It is a super-2 number, since 2×30653137² = 1879229615881538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30653107) 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, 806643 + ... + 806680.

It is an arithmetic number, because the mean of its divisors is an integer number (8066620).

Almost surely, 2^30653137 is an apocalyptic number.

It is an amenable number.

30653137 is a deficient number, since it is larger than the sum of its proper divisors (1613343).

30653137 is a wasteful number, since it uses less digits than its factorization.

30653137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613342.

The product of its (nonzero) digits is 5670, while the sum is 28.

The square root of 30653137 is about 5536.5275218317. The cubic root of 30653137 is about 312.9620241977.

The spelling of 30653137 in words is "thirty million, six hundred fifty-three thousand, one hundred thirty-seven".