104252643 has 64 divisors (see below), whose sum is σ = 177292800. Its totient is φ = 59978880.

The previous prime is 104252611. The next prime is 104252657. The reversal of 104252643 is 346252401.

104252643 is a `hidden beast` number, since 10 + 4 + 2 + 5 + 2 + 643 = 666.

It is not a de Polignac number, because 104252643 - 2⁵ = 104252611 is a prime.

It is a super-2 number, since 2×104252643² = 21737227144970898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (104252693) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 582328 + ... + 582506.

It is an arithmetic number, because the mean of its divisors is an integer number (2770200).

Almost surely, 2^104252643 is an apocalyptic number.

104252643 is a deficient number, since it is larger than the sum of its proper divisors (73040157).

104252643 is a wasteful number, since it uses less digits than its factorization.

104252643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 104252643 is about 10210.4183557776. The cubic root of 104252643 is about 470.6474297654.

The spelling of 104252643 in words is "one hundred four million, two hundred fifty-two thousand, six hundred forty-three".