1613400775 has 12 divisors (see below), whose sum is σ = 2286419632. Its totient is φ = 1106331840.

The previous prime is 1613400707. The next prime is 1613400787. The reversal of 1613400775 is 5770043161.

It is not a de Polignac number, because 1613400775 - 2¹⁵ = 1613368007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1613400775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4609542 + ... + 4609891.

Almost surely, 2^1613400775 is an apocalyptic number.

1613400775 is a deficient number, since it is larger than the sum of its proper divisors (673018857).

1613400775 is an equidigital number, since it uses as much as digits as its factorization.

1613400775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9219450 (or 9219445 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 1613400775 is about 40167.1604049876. The cubic root of 1613400775 is about 1172.8633631784.

The spelling of 1613400775 in words is "one billion, six hundred thirteen million, four hundred thousand, seven hundred seventy-five".