900641453 has 4 divisors (see below), whose sum is σ = 953620380. Its totient is φ = 847662528.

The previous prime is 900641449. The next prime is 900641479. The reversal of 900641453 is 354146009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354146009 = 7 ⋅50592287.

It can be written as a sum of positive squares in 2 ways, for example, as 752240329 + 148401124 = 27427^2 + 12182^2 .

It is a cyclic number.

It is not a de Polignac number, because 900641453 - 2² = 900641449 is a prime.

It is a super-2 number, since 2×900641453² = 1622310053723902418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900641353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26489438 + ... + 26489471.

It is an arithmetic number, because the mean of its divisors is an integer number (238405095).

Almost surely, 2^900641453 is an apocalyptic number.

It is an amenable number.

900641453 is a deficient number, since it is larger than the sum of its proper divisors (52978927).

900641453 is a wasteful number, since it uses less digits than its factorization.

900641453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52978926.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 900641453 is about 30010.6889790954. The cubic root of 900641453 is about 965.7187064524.

The spelling of 900641453 in words is "nine hundred million, six hundred forty-one thousand, four hundred fifty-three".