102774988 has 18 divisors (see below), whose sum is σ = 184277324. Its totient is φ = 50127504.

The previous prime is 102774977. The next prime is 102775027. The reversal of 102774988 is 889477201.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132570 + ... + 133342.

Almost surely, 2^102774988 is an apocalyptic number.

It is an amenable number.

102774988 is a deficient number, since it is larger than the sum of its proper divisors (81502336).

102774988 is an frugal number, since it uses more digits than its factorization.

102774988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 102774988 is about 10137.7999585709. The cubic root of 102774988 is about 468.4132213727.

The spelling of 102774988 in words is "one hundred two million, seven hundred seventy-four thousand, nine hundred eighty-eight".