900291013 has 2 divisors, whose sum is σ = 900291014. Its totient is φ = 900291012.

The previous prime is 900290987. The next prime is 900291017. The reversal of 900291013 is 310192009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655462404 + 244828609 = 25602^2 + 15647^2 .

It is an emirp because it is prime and its reverse (310192009) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900291013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900291017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450145506 + 450145507.

It is an arithmetic number, because the mean of its divisors is an integer number (450145507).

Almost surely, 2^900291013 is an apocalyptic number.

It is an amenable number.

900291013 is a deficient number, since it is larger than the sum of its proper divisors (1).

900291013 is an equidigital number, since it uses as much as digits as its factorization.

900291013 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 25.

The square root of 900291013 is about 30004.8498246533. The cubic root of 900291013 is about 965.5934363405.

The spelling of 900291013 in words is "nine hundred million, two hundred ninety-one thousand, thirteen".