1604014091 has 2 divisors, whose sum is σ = 1604014092. Its totient is φ = 1604014090.

The previous prime is 1604014063. The next prime is 1604014117. The reversal of 1604014091 is 1904104061.

It is an a-pointer prime, because the next prime (1604014117) can be obtained adding 1604014091 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1604014091 is a prime.

It is a super-2 number, since 2×1604014091² = 5145722408253112562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1604014091.

It is not a weakly prime, because it can be changed into another prime (1604014001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802007045 + 802007046.

It is an arithmetic number, because the mean of its divisors is an integer number (802007046).

Almost surely, 2^1604014091 is an apocalyptic number.

1604014091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604014091 is an equidigital number, since it uses as much as digits as its factorization.

1604014091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1604014091 is about 40050.1447063553. The cubic root of 1604014091 is about 1170.5843845708.

The spelling of 1604014091 in words is "one billion, six hundred four million, fourteen thousand, ninety-one".