1604155043 has 8 divisors (see below), whose sum is σ = 1635020640. Its totient is φ = 1573519360.

The previous prime is 1604155031. The next prime is 1604155061. The reversal of 1604155043 is 3405514061.

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 not a de Polignac number, because 1604155043 - 2¹⁴ = 1604138659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1604154997 and 1604155015.

It is not an unprimeable number, because it can be changed into a prime (1604155093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43358 + ... + 71331.

It is an arithmetic number, because the mean of its divisors is an integer number (204377580).

Almost surely, 2^1604155043 is an apocalyptic number.

1604155043 is a deficient number, since it is larger than the sum of its proper divisors (30865597).

1604155043 is a wasteful number, since it uses less digits than its factorization.

1604155043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114957.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1604155043 is about 40051.9043617154. The cubic root of 1604155043 is about 1170.6186717545.

The spelling of 1604155043 in words is "one billion, six hundred four million, one hundred fifty-five thousand, forty-three".