30372147 has 24 divisors (see below), whose sum is σ = 48352304. Its totient is φ = 18252864.

The previous prime is 30372137. The next prime is 30372151. The reversal of 30372147 is 74127303.

It is not a de Polignac number, because 30372147 - 2⁴ = 30372131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30372147.

It is not an unprimeable number, because it can be changed into a prime (30372137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2013 + ... + 8049.

Almost surely, 2^30372147 is an apocalyptic number.

30372147 is a deficient number, since it is larger than the sum of its proper divisors (17980157).

30372147 is a wasteful number, since it uses less digits than its factorization.

30372147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6099 (or 6096 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 30372147 is about 5511.0930857680. The cubic root of 30372147 is about 312.0028044620.

It can be divided in two parts, 3037 and 2147, that added together give a square (5184 = 72²).

The spelling of 30372147 in words is "thirty million, three hundred seventy-two thousand, one hundred forty-seven".