102839252 has 6 divisors (see below), whose sum is σ = 179968698. Its totient is φ = 51419624.

The previous prime is 102839251. The next prime is 102839263. The reversal of 102839252 is 252938201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69822736 + 33016516 = 8356^2 + 5746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102839251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12854903 + ... + 12854910.

It is an arithmetic number, because the mean of its divisors is an integer number (29994783).

Almost surely, 2^102839252 is an apocalyptic number.

It is an amenable number.

102839252 is a deficient number, since it is larger than the sum of its proper divisors (77129446).

102839252 is a wasteful number, since it uses less digits than its factorization.

102839252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25709817 (or 25709815 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 102839252 is about 10140.9689872319. The cubic root of 102839252 is about 468.5108321366.

The spelling of 102839252 in words is "one hundred two million, eight hundred thirty-nine thousand, two hundred fifty-two".