102799543 has 12 divisors (see below), whose sum is σ = 129137680. Its totient is φ = 80102880.

The previous prime is 102799537. The next prime is 102799553. The reversal of 102799543 is 345997201.

It is not a de Polignac number, because 102799543 - 2⁵ = 102799511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102799496 and 102799505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102799513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59838 + ... + 61531.

Almost surely, 2^102799543 is an apocalyptic number.

102799543 is a deficient number, since it is larger than the sum of its proper divisors (26338137).

102799543 is a wasteful number, since it uses less digits than its factorization.

102799543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121398 (or 121387 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 102799543 is about 10139.0109478193. The cubic root of 102799543 is about 468.4505228309.

The spelling of 102799543 in words is "one hundred two million, seven hundred ninety-nine thousand, five hundred forty-three".