83001931 has 2 divisors, whose sum is σ = 83001932. Its totient is φ = 83001930.

The previous prime is 83001929. The next prime is 83001943. The reversal of 83001931 is 13910038.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83001931 - 2¹ = 83001929 is a prime.

It is a super-2 number, since 2×83001931² = 13778641099457522, which contains 22 as substring.

Together with 83001929, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 83001896 and 83001905.

It is not a weakly prime, because it can be changed into another prime (83001991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41500965 + 41500966.

It is an arithmetic number, because the mean of its divisors is an integer number (41500966).

Almost surely, 2^83001931 is an apocalyptic number.

83001931 is a deficient number, since it is larger than the sum of its proper divisors (1).

83001931 is an equidigital number, since it uses as much as digits as its factorization.

83001931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 83001931 is about 9110.5395559209. The cubic root of 83001931 is about 436.2104499138.

Adding to 83001931 its reverse (13910038), we get a palindrome (96911969).

The spelling of 83001931 in words is "eighty-three million, one thousand, nine hundred thirty-one".