83504131 has 4 divisors (see below), whose sum is σ = 83531392. Its totient is φ = 83476872.

The previous prime is 83504117. The next prime is 83504147. The reversal of 83504131 is 13140538.

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

It is a cyclic number.

It is not a de Polignac number, because 83504131 - 2¹⁹ = 82979843 is a prime.

It is a super-2 number, since 2×83504131² = 13945879788130322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83504096 and 83504105.

It is not an unprimeable number, because it can be changed into a prime (83504231) 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, 8355 + ... + 15388.

It is an arithmetic number, because the mean of its divisors is an integer number (20882848).

Almost surely, 2^83504131 is an apocalyptic number.

83504131 is a deficient number, since it is larger than the sum of its proper divisors (27261).

83504131 is a wasteful number, since it uses less digits than its factorization.

83504131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27260.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 83504131 is about 9138.0594767160. The cubic root of 83504131 is about 437.0884397384.

Adding to 83504131 its reverse (13140538), we get a palindrome (96644669).

The spelling of 83504131 in words is "eighty-three million, five hundred four thousand, one hundred thirty-one".