132257839 has 4 divisors (see below), whose sum is σ = 151151824. Its totient is φ = 113363856.

The previous prime is 132257819. The next prime is 132257849. The reversal of 132257839 is 938752231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938752231 = 24239 ⋅38729.

It is a cyclic number.

It is not a de Polignac number, because 132257839 - 2⁹ = 132257327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132257819) 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, 9446982 + ... + 9446995.

It is an arithmetic number, because the mean of its divisors is an integer number (37787956).

Almost surely, 2^132257839 is an apocalyptic number.

132257839 is a deficient number, since it is larger than the sum of its proper divisors (18893985).

132257839 is an equidigital number, since it uses as much as digits as its factorization.

132257839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18893984.

The product of its digits is 90720, while the sum is 40.

The square root of 132257839 is about 11500.3408210366. The cubic root of 132257839 is about 509.4956426150.

The spelling of 132257839 in words is "one hundred thirty-two million, two hundred fifty-seven thousand, eight hundred thirty-nine".