131750869 has 2 divisors, whose sum is σ = 131750870. Its totient is φ = 131750868.

The previous prime is 131750813. The next prime is 131750873. The reversal of 131750869 is 968057131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118156900 + 13593969 = 10870^2 + 3687^2 .

It is a cyclic number.

It is not a de Polignac number, because 131750869 - 2¹¹ = 131748821 is a prime.

It is a super-2 number, since 2×131750869² = 34716582964510322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131750569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65875434 + 65875435.

It is an arithmetic number, because the mean of its divisors is an integer number (65875435).

Almost surely, 2^131750869 is an apocalyptic number.

It is an amenable number.

131750869 is a deficient number, since it is larger than the sum of its proper divisors (1).

131750869 is an equidigital number, since it uses as much as digits as its factorization.

131750869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 131750869 is about 11478.2781374211. The cubic root of 131750869 is about 508.8438104330.

The spelling of 131750869 in words is "one hundred thirty-one million, seven hundred fifty thousand, eight hundred sixty-nine".