1604146233 has 4 divisors (see below), whose sum is σ = 2138861648. Its totient is φ = 1069430820.

The previous prime is 1604146213. The next prime is 1604146253. The reversal of 1604146233 is 3326414061.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3326414061 = 3 ⋅1108804687.

It is an interprime number because it is at equal distance from previous prime (1604146213) and next prime (1604146253).

It is not a de Polignac number, because 1604146233 - 2⁶ = 1604146169 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 1604146233.

It is not an unprimeable number, because it can be changed into a prime (1604146213) 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, 267357703 + ... + 267357708.

It is an arithmetic number, because the mean of its divisors is an integer number (534715412).

Almost surely, 2^1604146233 is an apocalyptic number.

It is an amenable number.

1604146233 is a deficient number, since it is larger than the sum of its proper divisors (534715415).

1604146233 is an equidigital number, since it uses as much as digits as its factorization.

1604146233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534715414.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1604146233 is about 40051.7943792784. The cubic root of 1604146233 is about 1170.6165287427.

The spelling of 1604146233 in words is "one billion, six hundred four million, one hundred forty-six thousand, two hundred thirty-three".