52130137 has 4 divisors (see below), whose sum is σ = 52333236. Its totient is φ = 51927040.

The previous prime is 52130119. The next prime is 52130149. The reversal of 52130137 is 73103125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43243776 + 8886361 = 6576^2 + 2981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52130137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52136137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101164 + ... + 101677.

It is an arithmetic number, because the mean of its divisors is an integer number (13083309).

Almost surely, 2^52130137 is an apocalyptic number.

It is an amenable number.

52130137 is a deficient number, since it is larger than the sum of its proper divisors (203099).

52130137 is a wasteful number, since it uses less digits than its factorization.

52130137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203098.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 52130137 is about 7220.1202898567. The cubic root of 52130137 is about 373.5622266809.

The spelling of 52130137 in words is "fifty-two million, one hundred thirty thousand, one hundred thirty-seven".