1623085261 has 8 divisors (see below), whose sum is σ = 1892811200. Its totient is φ = 1391215644.

The previous prime is 1623085237. The next prime is 1623085283. The reversal of 1623085261 is 1625803261.

It is not a de Polignac number, because 1623085261 - 2¹⁵ = 1623052493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623085231) 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, 2365671 + ... + 2366356.

It is an arithmetic number, because the mean of its divisors is an integer number (236601400).

Almost surely, 2^1623085261 is an apocalyptic number.

It is an amenable number.

1623085261 is a deficient number, since it is larger than the sum of its proper divisors (269725939).

1623085261 is an frugal number, since it uses more digits than its factorization.

1623085261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732048 (or 4732034 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1623085261 is about 40287.5323270115. The cubic root of 1623085261 is about 1175.2053990707.

The spelling of 1623085261 in words is "one billion, six hundred twenty-three million, eighty-five thousand, two hundred sixty-one".