30968541 has 16 divisors (see below), whose sum is σ = 46633920. Its totient is φ = 20306160.

The previous prime is 30968521. The next prime is 30968573. The reversal of 30968541 is 14586903.

It is not a de Polignac number, because 30968541 - 2⁶ = 30968477 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30968496 and 30968505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30968501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7755 + ... + 11048.

It is an arithmetic number, because the mean of its divisors is an integer number (2914620).

Almost surely, 2^30968541 is an apocalyptic number.

It is an amenable number.

30968541 is a deficient number, since it is larger than the sum of its proper divisors (15665379).

30968541 is a wasteful number, since it uses less digits than its factorization.

30968541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18873 (or 18867 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 30968541 is about 5564.9385441351. The cubic root of 30968541 is about 314.0317661616.

The spelling of 30968541 in words is "thirty million, nine hundred sixty-eight thousand, five hundred forty-one".