30331345 has 16 divisors (see below), whose sum is σ = 39900672. Its totient is φ = 21951360.

The previous prime is 30331313. The next prime is 30331351. The reversal of 30331345 is 54313303.

It is not a de Polignac number, because 30331345 - 2⁵ = 30331313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11029 + ... + 13501.

It is an arithmetic number, because the mean of its divisors is an integer number (2493792).

Almost surely, 2^30331345 is an apocalyptic number.

It is an amenable number.

30331345 is a deficient number, since it is larger than the sum of its proper divisors (9569327).

30331345 is a wasteful number, since it uses less digits than its factorization.

30331345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 30331345 is about 5507.3900352163. The cubic root of 30331345 is about 311.8630267973.

Adding to 30331345 its reverse (54313303), we get a palindrome (84644648).

The spelling of 30331345 in words is "thirty million, three hundred thirty-one thousand, three hundred forty-five".