1253442623 has 16 divisors (see below), whose sum is σ = 1383609600. Its totient is φ = 1130304000.

The previous prime is 1253442613. The next prime is 1253442643. The reversal of 1253442623 is 3262443521.

It is a cyclic number.

It is not a de Polignac number, because 1253442623 - 2⁴ = 1253442607 is a prime.

It is a super-2 number, since 2×1253442623² = 3142236818306240258, 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 1253442623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253442613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41453 + ... + 65001.

It is an arithmetic number, because the mean of its divisors is an integer number (86475600).

Almost surely, 2^1253442623 is an apocalyptic number.

1253442623 is a deficient number, since it is larger than the sum of its proper divisors (130166977).

1253442623 is a wasteful number, since it uses less digits than its factorization.

1253442623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23698.

The product of its digits is 34560, while the sum is 32.

The square root of 1253442623 is about 35403.9916252391. The cubic root of 1253442623 is about 1078.2053593961.

The spelling of 1253442623 in words is "one billion, two hundred fifty-three million, four hundred forty-two thousand, six hundred twenty-three".