102745122 has 16 divisors (see below), whose sum is σ = 216305760. Its totient is φ = 32445792.

The previous prime is 102745079. The next prime is 102745133. The reversal of 102745122 is 221547201.

It is a junction number, because it is equal to n+sod(n) for n = 102745092 and 102745101.

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, 450523 + ... + 450750.

It is an arithmetic number, because the mean of its divisors is an integer number (13519110).

Almost surely, 2^102745122 is an apocalyptic number.

102745122 is an abundant number, since it is smaller than the sum of its proper divisors (113560638).

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

102745122 is a wasteful number, since it uses less digits than its factorization.

102745122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901297.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 102745122 is about 10136.3268495052. The cubic root of 102745122 is about 468.3678439747.

The spelling of 102745122 in words is "one hundred two million, seven hundred forty-five thousand, one hundred twenty-two".