904123201 has 2 divisors, whose sum is σ = 904123202. Its totient is φ = 904123200.

The previous prime is 904123193. The next prime is 904123211. The reversal of 904123201 is 102321409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 896703025 + 7420176 = 29945^2 + 2724^2 .

It is an emirp because it is prime and its reverse (102321409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 904123201 - 2³ = 904123193 is a prime.

It is not a weakly prime, because it can be changed into another prime (904123211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452061600 + 452061601.

It is an arithmetic number, because the mean of its divisors is an integer number (452061601).

Almost surely, 2^904123201 is an apocalyptic number.

It is an amenable number.

904123201 is a deficient number, since it is larger than the sum of its proper divisors (1).

904123201 is an equidigital number, since it uses as much as digits as its factorization.

904123201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 904123201 is about 30068.6414890996. The cubic root of 904123201 is about 966.9615486551.

The spelling of 904123201 in words is "nine hundred four million, one hundred twenty-three thousand, two hundred one".