30292137 has 28 divisors (see below), whose sum is σ = 47829680. Its totient is φ = 19131876.

The previous prime is 30292133. The next prime is 30292139. The reversal of 30292137 is 73129203.

It is not a de Polignac number, because 30292137 - 2² = 30292133 is a prime.

It is a super-2 number, since 2×30292137² = 1835227128053538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 30292137.

It is not an unprimeable number, because it can be changed into a prime (30292133) 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 27 ways as a sum of consecutive naturals, for example, 1594314 + ... + 1594332.

Almost surely, 2^30292137 is an apocalyptic number.

It is an amenable number.

30292137 is a deficient number, since it is larger than the sum of its proper divisors (17537543).

30292137 is an frugal number, since it uses more digits than its factorization.

30292137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58 (or 22 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 30292137 is about 5503.8293033124. The cubic root of 30292137 is about 311.7285916334.

The spelling of 30292137 in words is "thirty million, two hundred ninety-two thousand, one hundred thirty-seven".