131737040173 has 2 divisors, whose sum is σ = 131737040174. Its totient is φ = 131737040172.

The previous prime is 131737040161. The next prime is 131737040179. The reversal of 131737040173 is 371040737131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95000801284 + 36736238889 = 308222^2 + 191667^2 .

It is a cyclic number.

It is not a de Polignac number, because 131737040173 - 2²⁵ = 131703485741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131737040179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65868520086 + 65868520087.

It is an arithmetic number, because the mean of its divisors is an integer number (65868520087).

Almost surely, 2^131737040173 is an apocalyptic number.

It is an amenable number.

131737040173 is a deficient number, since it is larger than the sum of its proper divisors (1).

131737040173 is an equidigital number, since it uses as much as digits as its factorization.

131737040173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37044, while the sum is 37.

The spelling of 131737040173 in words is "one hundred thirty-one billion, seven hundred thirty-seven million, forty thousand, one hundred seventy-three".