30125407 has 4 divisors (see below), whose sum is σ = 32442760. Its totient is φ = 27808056.

The previous prime is 30125383. The next prime is 30125429. The reversal of 30125407 is 70452103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30125407 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 (30125467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158657 + ... + 1158682.

It is an arithmetic number, because the mean of its divisors is an integer number (8110690).

Almost surely, 2^30125407 is an apocalyptic number.

30125407 is a deficient number, since it is larger than the sum of its proper divisors (2317353).

30125407 is a wasteful number, since it uses less digits than its factorization.

30125407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317352.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30125407 is about 5488.6616765838. The cubic root of 30125407 is about 311.1556139239.

The spelling of 30125407 in words is "thirty million, one hundred twenty-five thousand, four hundred seven".