1604206231 has 8 divisors (see below), whose sum is σ = 1676973024. Its totient is φ = 1531691040.

The previous prime is 1604206211. The next prime is 1604206249. The reversal of 1604206231 is 1326024061.

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 1604206231 - 2⁵ = 1604206199 is a prime.

It is a super-2 number, since 2×1604206231² = 5146955263158450722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1604206196 and 1604206205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604206211) 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, 49800 + ... + 75421.

It is an arithmetic number, because the mean of its divisors is an integer number (209621628).

Almost surely, 2^1604206231 is an apocalyptic number.

1604206231 is a deficient number, since it is larger than the sum of its proper divisors (72766793).

1604206231 is a wasteful number, since it uses less digits than its factorization.

1604206231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125801.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1604206231 is about 40052.5433774186. The cubic root of 1604206231 is about 1170.6311229597.

The spelling of 1604206231 in words is "one billion, six hundred four million, two hundred six thousand, two hundred thirty-one".