103989425 has 36 divisors (see below), whose sum is σ = 141041940. Its totient is φ = 75985920.

The previous prime is 103989383. The next prime is 103989433. The reversal of 103989425 is 524989301.

It can be written as a sum of positive squares in 18 ways, for example, as 27793984 + 76195441 = 5272^2 + 8729^2 .

It is not a de Polignac number, because 103989425 - 2⁸ = 103989169 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 267131 + ... + 267519.

Almost surely, 2^103989425 is an apocalyptic number.

It is an amenable number.

103989425 is a deficient number, since it is larger than the sum of its proper divisors (37052515).

103989425 is a wasteful number, since it uses less digits than its factorization.

103989425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 103989425 is about 10197.5205319725. The cubic root of 103989425 is about 470.2509976678.

The spelling of 103989425 in words is "one hundred three million, nine hundred eighty-nine thousand, four hundred twenty-five".