30051387 has 6 divisors (see below), whose sum is σ = 43407572. Its totient is φ = 20034252.

The previous prime is 30051379. The next prime is 30051397. The reversal of 30051387 is 78315003.

It is not a de Polignac number, because 30051387 - 2³ = 30051379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30051387.

It is not an unprimeable number, because it can be changed into a prime (30051347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1669513 + ... + 1669530.

Almost surely, 2^30051387 is an apocalyptic number.

30051387 is a deficient number, since it is larger than the sum of its proper divisors (13356185).

30051387 is a wasteful number, since it uses less digits than its factorization.

30051387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339049 (or 3339046 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 30051387 is about 5481.9145378234. The cubic root of 30051387 is about 310.9005620136.

The spelling of 30051387 in words is "thirty million, fifty-one thousand, three hundred eighty-seven".