904138201 has 4 divisors (see below), whose sum is σ = 923375232. Its totient is φ = 884901172.

The previous prime is 904138187. The next prime is 904138229. The reversal of 904138201 is 102831409.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 904138201 - 2¹³ = 904130009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 904138201.

It is not an unprimeable number, because it can be changed into a prime (904138241) 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, 9618445 + ... + 9618538.

It is an arithmetic number, because the mean of its divisors is an integer number (230843808).

Almost surely, 2^904138201 is an apocalyptic number.

It is an amenable number.

904138201 is a deficient number, since it is larger than the sum of its proper divisors (19237031).

904138201 is a wasteful number, since it uses less digits than its factorization.

904138201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19237030.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 904138201 is about 30068.8909173584. The cubic root of 904138201 is about 966.9668961354.

The spelling of 904138201 in words is "nine hundred four million, one hundred thirty-eight thousand, two hundred one".