1904135 has 8 divisors (see below), whose sum is σ = 2296320. Its totient is φ = 1515744.

The previous prime is 1904129. The next prime is 1904143. The reversal of 1904135 is 5314091.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1904135 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1904135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314 + ... + 1976.

It is an arithmetic number, because the mean of its divisors is an integer number (287040).

2^1904135 is an apocalyptic number.

1904135 is a deficient number, since it is larger than the sum of its proper divisors (392185).

1904135 is a wasteful number, since it uses less digits than its factorization.

1904135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1904135 is about 1379.9039821669. The cubic root of 1904135 is about 123.9460179528.

It can be divided in two parts, 19041 and 35, that multiplied together give a triangular number (666435 = T₁₁₅₄).

The spelling of 1904135 in words is "one million, nine hundred four thousand, one hundred thirty-five".