30513513 has 8 divisors (see below), whose sum is σ = 41200000. Its totient is φ = 20084688.

The previous prime is 30513499. The next prime is 30513529. The reversal of 30513513 is 31531503.

It is a happy number.

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

It is not a de Polignac number, because 30513513 - 2⁸ = 30513257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30513513.

It is not an unprimeable number, because it can be changed into a prime (30553513) 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 7 ways as a sum of consecutive naturals, for example, 64138 + ... + 64611.

It is an arithmetic number, because the mean of its divisors is an integer number (5150000).

Almost surely, 2^30513513 is an apocalyptic number.

It is an amenable number.

30513513 is a deficient number, since it is larger than the sum of its proper divisors (10686487).

30513513 is a wasteful number, since it uses less digits than its factorization.

30513513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128831.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 30513513 is about 5523.9037826523. The cubic root of 30513513 is about 312.4861237572.

The spelling of 30513513 in words is "thirty million, five hundred thirteen thousand, five hundred thirteen".