103140139 has 4 divisors (see below), whose sum is σ = 109207224. Its totient is φ = 97073056.

The previous prime is 103140077. The next prime is 103140181. The reversal of 103140139 is 931041301.

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

It is a cyclic number.

It is not a de Polignac number, because 103140139 - 2²⁵ = 69585707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103140439) 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, 3033517 + ... + 3033550.

It is an arithmetic number, because the mean of its divisors is an integer number (27301806).

Almost surely, 2^103140139 is an apocalyptic number.

103140139 is a deficient number, since it is larger than the sum of its proper divisors (6067085).

103140139 is an equidigital number, since it uses as much as digits as its factorization.

103140139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067084.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 103140139 is about 10155.7933712734. The cubic root of 103140139 is about 468.9673101087.

The spelling of 103140139 in words is "one hundred three million, one hundred forty thousand, one hundred thirty-nine".