131359633 has 2 divisors, whose sum is σ = 131359634. Its totient is φ = 131359632.

The previous prime is 131359621. The next prime is 131359649. The reversal of 131359633 is 336953131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110502144 + 20857489 = 10512^2 + 4567^2 .

It is an emirp because it is prime and its reverse (336953131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131359633 - 2²¹ = 129262481 is a prime.

It is not a weakly prime, because it can be changed into another prime (131359603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65679816 + 65679817.

It is an arithmetic number, because the mean of its divisors is an integer number (65679817).

Almost surely, 2^131359633 is an apocalyptic number.

It is an amenable number.

131359633 is a deficient number, since it is larger than the sum of its proper divisors (1).

131359633 is an equidigital number, since it uses as much as digits as its factorization.

131359633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21870, while the sum is 34.

The square root of 131359633 is about 11461.2230150189. The cubic root of 131359633 is about 508.3396381791.

The spelling of 131359633 in words is "one hundred thirty-one million, three hundred fifty-nine thousand, six hundred thirty-three".