103509708225 has 96 divisors (see below), whose sum is σ = 217719398400. Its totient is φ = 43016904000.

The previous prime is 103509708223. The next prime is 103509708233. The reversal of 103509708225 is 522807905301.

It is a happy number.

It is not a de Polignac number, because 103509708225 - 2¹ = 103509708223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103509708223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 100080 + ... + 465870.

It is an arithmetic number, because the mean of its divisors is an integer number (2267910400).

Almost surely, 2^103509708225 is an apocalyptic number.

103509708225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103509708225 is an abundant number, since it is smaller than the sum of its proper divisors (114209690175).

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

103509708225 is a wasteful number, since it uses less digits than its factorization.

103509708225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365836 (or 365817 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 103509708225 in words is "one hundred three billion, five hundred nine million, seven hundred eight thousand, two hundred twenty-five".