103142992 has 10 divisors (see below), whose sum is σ = 199839578. Its totient is φ = 51571488.

The previous prime is 103142989. The next prime is 103143011. The reversal of 103142992 is 299241301.

It can be written as a sum of positive squares in only one way, i.e., 102738496 + 404496 = 10136^2 + 636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3223203 + ... + 3223234.

Almost surely, 2^103142992 is an apocalyptic number.

It is an amenable number.

103142992 is a deficient number, since it is larger than the sum of its proper divisors (96696586).

103142992 is an equidigital number, since it uses as much as digits as its factorization.

103142992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446445 (or 6446439 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 103142992 is about 10155.9338320019. The cubic root of 103142992 is about 468.9716341653.

The spelling of 103142992 in words is "one hundred three million, one hundred forty-two thousand, nine hundred ninety-two".