30157345 has 16 divisors (see below), whose sum is σ = 37347408. Its totient is φ = 23362560.

The previous prime is 30157339. The next prime is 30157349. The reversal of 30157345 is 54375103.

It can be written as a sum of positive squares in 8 ways, for example, as 13608721 + 16548624 = 3689^2 + 4068^2 .

It is not a de Polignac number, because 30157345 - 2⁷ = 30157217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30157349) 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, 31717 + ... + 32653.

It is an arithmetic number, because the mean of its divisors is an integer number (2334213).

Almost surely, 2^30157345 is an apocalyptic number.

It is an amenable number.

30157345 is a deficient number, since it is larger than the sum of its proper divisors (7190063).

30157345 is a wasteful number, since it uses less digits than its factorization.

30157345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 30157345 is about 5491.5703582855. The cubic root of 30157345 is about 311.2655341892.

The spelling of 30157345 in words is "thirty million, one hundred fifty-seven thousand, three hundred forty-five".