102187135755 has 24 divisors (see below), whose sum is σ = 177205825680. Its totient is φ = 54474742080.

The previous prime is 102187135741. The next prime is 102187135783. The reversal of 102187135755 is 557531781201.

102187135755 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 8 + 71 + 3 + 575 + 5 = 666.

It is not a de Polignac number, because 102187135755 - 2⁷ = 102187135627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 102187135755.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423016 + ... + 619125.

It is an arithmetic number, because the mean of its divisors is an integer number (7383576070).

Almost surely, 2^102187135755 is an apocalyptic number.

102187135755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102187135755 is a deficient number, since it is larger than the sum of its proper divisors (75018689925).

102187135755 is a wasteful number, since it uses less digits than its factorization.

102187135755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044331 (or 1044328 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 45.

The spelling of 102187135755 in words is "one hundred two billion, one hundred eighty-seven million, one hundred thirty-five thousand, seven hundred fifty-five".