131786801 has 2 divisors, whose sum is σ = 131786802. Its totient is φ = 131786800.

The previous prime is 131786693. The next prime is 131786807. The reversal of 131786801 is 108687131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129937201 + 1849600 = 11399^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 131786801 - 2¹⁰ = 131785777 is a prime.

It is not a weakly prime, because it can be changed into another prime (131786807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65893400 + 65893401.

It is an arithmetic number, because the mean of its divisors is an integer number (65893401).

Almost surely, 2^131786801 is an apocalyptic number.

It is an amenable number.

131786801 is a deficient number, since it is larger than the sum of its proper divisors (1).

131786801 is an equidigital number, since it uses as much as digits as its factorization.

131786801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 131786801 is about 11479.8432480587. The cubic root of 131786801 is about 508.8900646855.

The spelling of 131786801 in words is "one hundred thirty-one million, seven hundred eighty-six thousand, eight hundred one".