131554917017 has 2 divisors, whose sum is σ = 131554917018. Its totient is φ = 131554917016.

The previous prime is 131554916957. The next prime is 131554917037. The reversal of 131554917017 is 710719455131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95994009241 + 35560907776 = 309829^2 + 188576^2 .

It is a cyclic number.

It is not a de Polignac number, because 131554917017 - 2⁶ = 131554916953 is a prime.

It is not a weakly prime, because it can be changed into another prime (131554917037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65777458508 + 65777458509.

It is an arithmetic number, because the mean of its divisors is an integer number (65777458509).

Almost surely, 2^131554917017 is an apocalyptic number.

It is an amenable number.

131554917017 is a deficient number, since it is larger than the sum of its proper divisors (1).

131554917017 is an equidigital number, since it uses as much as digits as its factorization.

131554917017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 44.

The spelling of 131554917017 in words is "one hundred thirty-one billion, five hundred fifty-four million, nine hundred seventeen thousand, seventeen".