102777130 has 8 divisors (see below), whose sum is σ = 184998852. Its totient is φ = 41110848.

The previous prime is 102777113. The next prime is 102777139. The reversal of 102777130 is 31777201.

It can be written as a sum of positive squares in 2 ways, for example, as 102151449 + 625681 = 10107^2 + 791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (102777139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5138847 + ... + 5138866.

Almost surely, 2^102777130 is an apocalyptic number.

102777130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102777130 is a deficient number, since it is larger than the sum of its proper divisors (82221722).

102777130 is a wasteful number, since it uses less digits than its factorization.

102777130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10277720.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 102777130 is about 10137.9056022435. The cubic root of 102777130 is about 468.4164755177.

The spelling of 102777130 in words is "one hundred two million, seven hundred seventy-seven thousand, one hundred thirty".