131003633 has 2 divisors, whose sum is σ = 131003634. Its totient is φ = 131003632.

The previous prime is 131003627. The next prime is 131003669. The reversal of 131003633 is 336300131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129436129 + 1567504 = 11377^2 + 1252^2 .

It is an emirp because it is prime and its reverse (336300131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131003633 - 2²⁰ = 129955057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131003603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501816 + 65501817.

It is an arithmetic number, because the mean of its divisors is an integer number (65501817).

Almost surely, 2^131003633 is an apocalyptic number.

It is an amenable number.

131003633 is a deficient number, since it is larger than the sum of its proper divisors (1).

131003633 is an equidigital number, since it uses as much as digits as its factorization.

131003633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 131003633 is about 11445.6818495011. The cubic root of 131003633 is about 507.8800027088.

Adding to 131003633 its reverse (336300131), we get a palindrome (467303764).

The spelling of 131003633 in words is "one hundred thirty-one million, three thousand, six hundred thirty-three".