30875243 has 6 divisors (see below), whose sum is σ = 35916156. Its totient is φ = 26464452.

The previous prime is 30875239. The next prime is 30875249. The reversal of 30875243 is 34257803.

It is a happy number.

It is not a de Polignac number, because 30875243 - 2² = 30875239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30875249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315005 + ... + 315102.

It is an arithmetic number, because the mean of its divisors is an integer number (5986026).

Almost surely, 2^30875243 is an apocalyptic number.

30875243 is a deficient number, since it is larger than the sum of its proper divisors (5040913).

30875243 is an equidigital number, since it uses as much as digits as its factorization.

30875243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630121 (or 630114 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 30875243 is about 5556.5495588539. The cubic root of 30875243 is about 313.7160908947.

The spelling of 30875243 in words is "thirty million, eight hundred seventy-five thousand, two hundred forty-three".