103142743 has 4 divisors (see below), whose sum is σ = 112519368. Its totient is φ = 93766120.

The previous prime is 103142737. The next prime is 103142759. The reversal of 103142743 is 347241301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103142743 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 (103142713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4688296 + ... + 4688317.

It is an arithmetic number, because the mean of its divisors is an integer number (28129842).

Almost surely, 2^103142743 is an apocalyptic number.

103142743 is a deficient number, since it is larger than the sum of its proper divisors (9376625).

103142743 is an equidigital number, since it uses as much as digits as its factorization.

103142743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9376624.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 103142743 is about 10155.9215731513. The cubic root of 103142743 is about 468.9712567798.

The spelling of 103142743 in words is "one hundred three million, one hundred forty-two thousand, seven hundred forty-three".