102744127545 has 32 divisors (see below), whose sum is σ = 173639921664. Its totient is φ = 51795979200.

The previous prime is 102744127531. The next prime is 102744127663. The reversal of 102744127545 is 545721447201.

It is not a de Polignac number, because 102744127545 - 2⁴ = 102744127529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102744127497 and 102744127506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2549251 + ... + 2589240.

It is an arithmetic number, because the mean of its divisors is an integer number (5426247552).

Almost surely, 2^102744127545 is an apocalyptic number.

102744127545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102744127545 is a deficient number, since it is larger than the sum of its proper divisors (70895794119).

102744127545 is a wasteful number, since it uses less digits than its factorization.

102744127545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138573.

The product of its (nonzero) digits is 313600, while the sum is 42.

The spelling of 102744127545 in words is "one hundred two billion, seven hundred forty-four million, one hundred twenty-seven thousand, five hundred forty-five".