183073983455981 has 2 divisors, whose sum is σ = 183073983455982. Its totient is φ = 183073983455980.

The previous prime is 183073983455959. The next prime is 183073983456029. The reversal of 183073983455981 is 189554389370381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159580283635081 + 23493699820900 = 12632509^2 + 4847030^2 .

It is a cyclic number.

It is not a de Polignac number, because 183073983455981 - 2⁴² = 178675936944877 is a prime.

It is a super-2 number, since 2×183073983455981² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 183073983455899 and 183073983455908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (183073983445981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91536991727990 + 91536991727991.

It is an arithmetic number, because the mean of its divisors is an integer number (91536991727991).

Almost surely, 2^{183073983455981} is an apocalyptic number.

It is an amenable number.

183073983455981 is a deficient number, since it is larger than the sum of its proper divisors (1).

183073983455981 is an equidigital number, since it uses as much as digits as its factorization.

183073983455981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 783820800, while the sum is 74.

The spelling of 183073983455981 in words is "one hundred eighty-three trillion, seventy-three billion, nine hundred eighty-three million, four hundred fifty-five thousand, nine hundred eighty-one".