30757013 has 8 divisors (see below), whose sum is σ = 35814528. Its totient is φ = 25865424.

The previous prime is 30757009. The next prime is 30757031. The reversal of 30757013 is 31075703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30757013 - 2² = 30757009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30757073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41081 + ... + 41822.

It is an arithmetic number, because the mean of its divisors is an integer number (4476816).

Almost surely, 2^30757013 is an apocalyptic number.

It is an amenable number.

30757013 is a deficient number, since it is larger than the sum of its proper divisors (5057515).

30757013 is an equidigital number, since it uses as much as digits as its factorization.

30757013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82963.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 30757013 is about 5545.9005580699. The cubic root of 30757013 is about 313.3151429257.

The spelling of 30757013 in words is "thirty million, seven hundred fifty-seven thousand, thirteen".