102743818 has 16 divisors (see below), whose sum is σ = 163404864. Its totient is φ = 48283840.

The previous prime is 102743807. The next prime is 102743831. The reversal of 102743818 is 818347201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30603 + ... + 33793.

It is an arithmetic number, because the mean of its divisors is an integer number (10212804).

Almost surely, 2^102743818 is an apocalyptic number.

102743818 is a deficient number, since it is larger than the sum of its proper divisors (60661046).

102743818 is a wasteful number, since it uses less digits than its factorization.

102743818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 102743818 is about 10136.2625261977. The cubic root of 102743818 is about 468.3658625205.

The spelling of 102743818 in words is "one hundred two million, seven hundred forty-three thousand, eight hundred eighteen".