102540415305 has 16 divisors (see below), whose sum is σ = 164132601984. Its totient is φ = 54665575680.

The previous prime is 102540415291. The next prime is 102540415391. The reversal of 102540415305 is 503514045201.

It is not a de Polignac number, because 102540415305 - 2⁵ = 102540415273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1377901 + ... + 1450410.

It is an arithmetic number, because the mean of its divisors is an integer number (10258287624).

Almost surely, 2^102540415305 is an apocalyptic number.

102540415305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102540415305 is a deficient number, since it is larger than the sum of its proper divisors (61592186679).

102540415305 is a wasteful number, since it uses less digits than its factorization.

102540415305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830736.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 102540415305 in words is "one hundred two billion, five hundred forty million, four hundred fifteen thousand, three hundred five".