52142137 has 4 divisors (see below), whose sum is σ = 54886480. Its totient is φ = 49397796.

The previous prime is 52142071. The next prime is 52142141. The reversal of 52142137 is 73124125.

It is a happy number.

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.

It is not a de Polignac number, because 52142137 - 2¹¹ = 52140089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52142197) 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, 1372143 + ... + 1372180.

It is an arithmetic number, because the mean of its divisors is an integer number (13721620).

Almost surely, 2^52142137 is an apocalyptic number.

It is an amenable number.

52142137 is a deficient number, since it is larger than the sum of its proper divisors (2744343).

52142137 is a wasteful number, since it uses less digits than its factorization.

52142137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744342.

The product of its digits is 1680, while the sum is 25.

The square root of 52142137 is about 7220.9512531245. The cubic root of 52142137 is about 373.5908883026.

The spelling of 52142137 in words is "fifty-two million, one hundred forty-two thousand, one hundred thirty-seven".