102512420 has 24 divisors (see below), whose sum is σ = 217292544. Its totient is φ = 40620896.

The previous prime is 102512407. The next prime is 102512471. The reversal of 102512420 is 24215201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21812 + ... + 26091.

It is an arithmetic number, because the mean of its divisors is an integer number (9053856).

Almost surely, 2^102512420 is an apocalyptic number.

102512420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102512420 is an abundant number, since it is smaller than the sum of its proper divisors (114780124).

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

102512420 is a wasteful number, since it uses less digits than its factorization.

102512420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48019 (or 48017 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 102512420 is about 10124.8417271580. The cubic root of 102512420 is about 468.0139828291.

Adding to 102512420 its reverse (24215201), we get a palindrome (126727621).

The spelling of 102512420 in words is "one hundred two million, five hundred twelve thousand, four hundred twenty".