30500745 has 64 divisors (see below), whose sum is σ = 56401920. Its totient is φ = 13939200.

The previous prime is 30500741. The next prime is 30500749. The reversal of 30500745 is 54700503.

It is an interprime number because it is at equal distance from previous prime (30500741) and next prime (30500749).

It is not a de Polignac number, because 30500745 - 2² = 30500741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30500741) 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 63 ways as a sum of consecutive naturals, for example, 342661 + ... + 342749.

It is an arithmetic number, because the mean of its divisors is an integer number (881280).

Almost surely, 2^30500745 is an apocalyptic number.

It is an amenable number.

30500745 is a deficient number, since it is larger than the sum of its proper divisors (25901175).

30500745 is a wasteful number, since it uses less digits than its factorization.

30500745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30500745 is about 5522.7479573126. The cubic root of 30500745 is about 312.4425323659.

The spelling of 30500745 in words is "thirty million, five hundred thousand, seven hundred forty-five".