900131190529 has 2 divisors, whose sum is σ = 900131190530. Its totient is φ = 900131190528.

The previous prime is 900131190509. The next prime is 900131190577. The reversal of 900131190529 is 925091131009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883477804225 + 16653386304 = 939935^2 + 129048^2 .

It is an emirp because it is prime and its reverse (925091131009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 900131190529 - 2⁹ = 900131190017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 900131190491 and 900131190500.

It is not a weakly prime, because it can be changed into another prime (900131190509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450065595264 + 450065595265.

It is an arithmetic number, because the mean of its divisors is an integer number (450065595265).

Almost surely, 2^900131190529 is an apocalyptic number.

It is an amenable number.

900131190529 is a deficient number, since it is larger than the sum of its proper divisors (1).

900131190529 is an equidigital number, since it uses as much as digits as its factorization.

900131190529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 40.

The spelling of 900131190529 in words is "nine hundred billion, one hundred thirty-one million, one hundred ninety thousand, five hundred twenty-nine".