102612740 has 24 divisors (see below), whose sum is σ = 216299160. Its totient is φ = 40890368.

The previous prime is 102612737. The next prime is 102612761. The reversal of 102612740 is 47216201.

102612740 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7706176 + 94906564 = 2776^2 + 9742^2 .

102612740 is strictly pandigital in base 9.

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, 4157 + ... + 14916.

It is an arithmetic number, because the mean of its divisors is an integer number (9012465).

Almost surely, 2^102612740 is an apocalyptic number.

102612740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102612740 is an abundant number, since it is smaller than the sum of its proper divisors (113686420).

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

102612740 is a wasteful number, since it uses less digits than its factorization.

102612740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19351 (or 19349 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 102612740 is about 10129.7946672181. The cubic root of 102612740 is about 468.1666012644.

Adding to 102612740 its reverse (47216201), we get a palindrome (149828941).

The spelling of 102612740 in words is "one hundred two million, six hundred twelve thousand, seven hundred forty".