102774254 has 12 divisors (see below), whose sum is σ = 169450512. Its totient is φ = 46715460.

The previous prime is 102774239. The next prime is 102774293. The reversal of 102774254 is 452477201.

It is a self number, because there is not a number n which added to its sum of digits gives 102774254.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212102 + ... + 212585.

It is an arithmetic number, because the mean of its divisors is an integer number (14120876).

Almost surely, 2^102774254 is an apocalyptic number.

102774254 is a deficient number, since it is larger than the sum of its proper divisors (66676258).

102774254 is a wasteful number, since it uses less digits than its factorization.

102774254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424711 (or 424700 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 102774254 is about 10137.7637573579. The cubic root of 102774254 is about 468.4121062631.

The spelling of 102774254 in words is "one hundred two million, seven hundred seventy-four thousand, two hundred fifty-four".