102340520 has 32 divisors (see below), whose sum is σ = 236493000. Its totient is φ = 39829248.

The previous prime is 102340457. The next prime is 102340543. The reversal of 102340520 is 25043201.

It can be written as a sum of positive squares in 4 ways, for example, as 92891044 + 9449476 = 9638^2 + 3074^2 .

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 7 ways as a sum of consecutive naturals, for example, 33095 + ... + 36054.

Almost surely, 2^102340520 is an apocalyptic number.

102340520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102340520 is an abundant number, since it is smaller than the sum of its proper divisors (134152480).

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

102340520 is a wasteful number, since it uses less digits than its factorization.

102340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69197 (or 69193 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 102340520 is about 10116.3491438364. The cubic root of 102340520 is about 467.7522369368.

Adding to 102340520 its reverse (25043201), we get a palindrome (127383721).

The spelling of 102340520 in words is "one hundred two million, three hundred forty thousand, five hundred twenty".