131783633 has 2 divisors, whose sum is σ = 131783634. Its totient is φ = 131783632.

The previous prime is 131783623. The next prime is 131783657. The reversal of 131783633 is 336387131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116791249 + 14992384 = 10807^2 + 3872^2 .

It is a cyclic number.

It is not a de Polignac number, because 131783633 - 2²⁰ = 130735057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131783593 and 131783602.

It is not a weakly prime, because it can be changed into another prime (131783623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65891816 + 65891817.

It is an arithmetic number, because the mean of its divisors is an integer number (65891817).

Almost surely, 2^131783633 is an apocalyptic number.

It is an amenable number.

131783633 is a deficient number, since it is larger than the sum of its proper divisors (1).

131783633 is an equidigital number, since it uses as much as digits as its factorization.

131783633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 131783633 is about 11479.7052662514. The cubic root of 131783633 is about 508.8859869462.

The spelling of 131783633 in words is "one hundred thirty-one million, seven hundred eighty-three thousand, six hundred thirty-three".