102341780 has 12 divisors (see below), whose sum is σ = 214917780. Its totient is φ = 40936704.

The previous prime is 102341779. The next prime is 102341791. The reversal of 102341780 is 87143201.

It can be written as a sum of positive squares in 2 ways, for example, as 65351056 + 36990724 = 8084^2 + 6082^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2558525 + ... + 2558564.

It is an arithmetic number, because the mean of its divisors is an integer number (17909815).

Almost surely, 2^102341780 is an apocalyptic number.

102341780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102341780 is an abundant number, since it is smaller than the sum of its proper divisors (112576000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102341780 is a wasteful number, since it uses less digits than its factorization.

102341780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117098 (or 5117096 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 102341780 is about 10116.4114190754. The cubic root of 102341780 is about 467.7541565590.

Adding to 102341780 its reverse (87143201), we get a palindrome (189484981).

The spelling of 102341780 in words is "one hundred two million, three hundred forty-one thousand, seven hundred eighty".