103142825 has 12 divisors (see below), whose sum is σ = 135421020. Its totient is φ = 77660160.

The previous prime is 103142813. The next prime is 103142857. The reversal of 103142825 is 528241301.

It can be written as a sum of positive squares in 6 ways, for example, as 11978521 + 91164304 = 3461^2 + 9548^2 .

It is not a de Polignac number, because 103142825 - 2²⁶ = 36033961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103142794 and 103142803.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120920 + ... + 121769.

It is an arithmetic number, because the mean of its divisors is an integer number (11285085).

Almost surely, 2^103142825 is an apocalyptic number.

It is an amenable number.

103142825 is a deficient number, since it is larger than the sum of its proper divisors (32278195).

103142825 is a wasteful number, since it uses less digits than its factorization.

103142825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242716 (or 242711 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 103142825 is about 10155.9256102041. The cubic root of 103142825 is about 468.9713810594.

The spelling of 103142825 in words is "one hundred three million, one hundred forty-two thousand, eight hundred twenty-five".