83437131 has 4 divisors (see below), whose sum is σ = 111249512. Its totient is φ = 55624752.

The previous prime is 83437129. The next prime is 83437153. The reversal of 83437131 is 13173438.

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

It is not a de Polignac number, because 83437131 - 2¹ = 83437129 is a prime.

It is a super-2 number, since 2×83437131² = 13923509659022322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83437111) 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, 13906186 + ... + 13906191.

It is an arithmetic number, because the mean of its divisors is an integer number (27812378).

Almost surely, 2^83437131 is an apocalyptic number.

83437131 is a deficient number, since it is larger than the sum of its proper divisors (27812381).

83437131 is a wasteful number, since it uses less digits than its factorization.

83437131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27812380.

The product of its digits is 6048, while the sum is 30.

The square root of 83437131 is about 9134.3927548579. The cubic root of 83437131 is about 436.9715083526.

The spelling of 83437131 in words is "eighty-three million, four hundred thirty-seven thousand, one hundred thirty-one".