30313745 has 16 divisors (see below), whose sum is σ = 45353088. Its totient is φ = 18896640.

The previous prime is 30313741. The next prime is 30313763. The reversal of 30313745 is 54731303.

It is not a de Polignac number, because 30313745 - 2² = 30313741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30313741) 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, 38984 + ... + 39753.

It is an arithmetic number, because the mean of its divisors is an integer number (2834568).

Almost surely, 2^30313745 is an apocalyptic number.

30313745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30313745 is a deficient number, since it is larger than the sum of its proper divisors (15039343).

30313745 is a wasteful number, since it uses less digits than its factorization.

30313745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78760.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 30313745 is about 5505.7919503011. The cubic root of 30313745 is about 311.8026948068.

It can be divided in two parts, 3031 and 3745, that added together give a palindrome (6776).

The spelling of 30313745 in words is "thirty million, three hundred thirteen thousand, seven hundred forty-five".