1604431151 has 8 divisors (see below), whose sum is σ = 1734955200. Its totient is φ = 1477923328.

The previous prime is 1604431123. The next prime is 1604431261. The reversal of 1604431151 is 1511344061.

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

It is a cyclic number.

It is not a de Polignac number, because 1604431151 - 2¹⁰ = 1604430127 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 1604431151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604431121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003226 + ... + 1004823.

It is an arithmetic number, because the mean of its divisors is an integer number (216869400).

Almost surely, 2^1604431151 is an apocalyptic number.

1604431151 is a deficient number, since it is larger than the sum of its proper divisors (130524049).

1604431151 is a wasteful number, since it uses less digits than its factorization.

1604431151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008113.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1604431151 is about 40055.3510907095. The cubic root of 1604431151 is about 1170.6858303996.

The spelling of 1604431151 in words is "one billion, six hundred four million, four hundred thirty-one thousand, one hundred fifty-one".