103689925 has 6 divisors (see below), whose sum is σ = 128575538. Its totient is φ = 82951920.

The previous prime is 103689923. The next prime is 103689931. The reversal of 103689925 is 529986301.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 17255716 + 86434209 = 4154^2 + 9297^2 .

It is not a de Polignac number, because 103689925 - 2¹ = 103689923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103689923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2073774 + ... + 2073823.

Almost surely, 2^103689925 is an apocalyptic number.

It is an amenable number.

103689925 is a deficient number, since it is larger than the sum of its proper divisors (24885613).

103689925 is an equidigital number, since it uses as much as digits as its factorization.

103689925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147607 (or 4147602 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 103689925 is about 10182.8250009514. The cubic root of 103689925 is about 469.7991068406.

The spelling of 103689925 in words is "one hundred three million, six hundred eighty-nine thousand, nine hundred twenty-five".