900819053 has 2 divisors, whose sum is σ = 900819054. Its totient is φ = 900819052.

The previous prime is 900819047. The next prime is 900819079. The reversal of 900819053 is 350918009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846693604 + 54125449 = 29098^2 + 7357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900819053 is a prime.

It is a super-2 number, since 2×900819053² = 1622949932495633618, which contains 22 as substring.

It is equal to p_46049084 and since 900819053 and 46049084 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900819653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450409526 + 450409527.

It is an arithmetic number, because the mean of its divisors is an integer number (450409527).

Almost surely, 2^900819053 is an apocalyptic number.

It is an amenable number.

900819053 is a deficient number, since it is larger than the sum of its proper divisors (1).

900819053 is an equidigital number, since it uses as much as digits as its factorization.

900819053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 900819053 is about 30013.6477789688. The cubic root of 900819053 is about 965.7821798688.

The spelling of 900819053 in words is "nine hundred million, eight hundred nineteen thousand, fifty-three".