83180531 has 4 divisors (see below), whose sum is σ = 95063472. Its totient is φ = 71297592.

The previous prime is 83180467. The next prime is 83180549. The reversal of 83180531 is 13508138.

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 83180531 - 2⁶ = 83180467 is a prime.

It is a super-2 number, since 2×83180531² = 13838001474883922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83180494 and 83180503.

It is not an unprimeable number, because it can be changed into a prime (83180131) 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, 5941460 + ... + 5941473.

It is an arithmetic number, because the mean of its divisors is an integer number (23765868).

Almost surely, 2^83180531 is an apocalyptic number.

83180531 is a deficient number, since it is larger than the sum of its proper divisors (11882941).

83180531 is a wasteful number, since it uses less digits than its factorization.

83180531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11882940.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 83180531 is about 9120.3361231920. The cubic root of 83180531 is about 436.5230987603.

Adding to 83180531 its reverse (13508138), we get a palindrome (96688669).

The spelling of 83180531 in words is "eighty-three million, one hundred eighty thousand, five hundred thirty-one".