30131207 has 8 divisors (see below), whose sum is σ = 32046000. Its totient is φ = 28249344.

The previous prime is 30131201. The next prime is 30131243. The reversal of 30131207 is 70213103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30131207 - 2¹⁰ = 30130183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6332 + ... + 10017.

It is an arithmetic number, because the mean of its divisors is an integer number (4005750).

Almost surely, 2^30131207 is an apocalyptic number.

30131207 is a deficient number, since it is larger than the sum of its proper divisors (1914793).

30131207 is a wasteful number, since it uses less digits than its factorization.

30131207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16465.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 30131207 is about 5489.1900131076. The cubic root of 30131207 is about 311.1755814190.

The spelling of 30131207 in words is "thirty million, one hundred thirty-one thousand, two hundred seven".