30481613 has 8 divisors (see below), whose sum is σ = 30792960. Its totient is φ = 30172240.

The previous prime is 30481609. The next prime is 30481631. The reversal of 30481613 is 31618403.

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 30481613 - 2² = 30481609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30481603) 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, 70508 + ... + 70938.

It is an arithmetic number, because the mean of its divisors is an integer number (3849120).

Almost surely, 2^30481613 is an apocalyptic number.

It is an amenable number.

30481613 is a deficient number, since it is larger than the sum of its proper divisors (311347).

30481613 is a wasteful number, since it uses less digits than its factorization.

30481613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30481613 is about 5521.0155768663. The cubic root of 30481613 is about 312.3771907836.

The spelling of 30481613 in words is "thirty million, four hundred eighty-one thousand, six hundred thirteen".