30253137 has 4 divisors (see below), whose sum is σ = 40337520. Its totient is φ = 20168756.

The previous prime is 30253127. The next prime is 30253163. The reversal of 30253137 is 73135203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73135203 = 3 ⋅24378401.

It is a cyclic number.

It is not a de Polignac number, because 30253137 - 2⁸ = 30252881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30253127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5042187 + ... + 5042192.

It is an arithmetic number, because the mean of its divisors is an integer number (10084380).

Almost surely, 2^30253137 is an apocalyptic number.

It is an amenable number.

30253137 is a deficient number, since it is larger than the sum of its proper divisors (10084383).

30253137 is a wasteful number, since it uses less digits than its factorization.

30253137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084382.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 30253137 is about 5500.2851744250. The cubic root of 30253137 is about 311.5947545234.

The spelling of 30253137 in words is "thirty million, two hundred fifty-three thousand, one hundred thirty-seven".