30749163 has 16 divisors (see below), whose sum is σ = 43478400. Its totient is φ = 19275840.

The previous prime is 30749143. The next prime is 30749189. The reversal of 30749163 is 36194703.

It is not a de Polignac number, because 30749163 - 2⁶ = 30749099 is a prime.

It is a super-2 number, since 2×30749163² = 1891022050401138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30749123) 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, 5983 + ... + 9863.

It is an arithmetic number, because the mean of its divisors is an integer number (2717400).

Almost surely, 2^30749163 is an apocalyptic number.

30749163 is a deficient number, since it is larger than the sum of its proper divisors (12729237).

30749163 is a wasteful number, since it uses less digits than its factorization.

30749163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 30749163 is about 5545.1927829427. The cubic root of 30749163 is about 313.2884852314.

The spelling of 30749163 in words is "thirty million, seven hundred forty-nine thousand, one hundred sixty-three".