103238139 has 8 divisors (see below), whose sum is σ = 139309632. Its totient is φ = 67996040.

The previous prime is 103238137. The next prime is 103238143. The reversal of 103238139 is 931832301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103238139 - 2¹ = 103238137 is a prime.

It is a super-2 number, since 2×103238139² = 21316226688366642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103238137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207057 + ... + 207554.

It is an arithmetic number, because the mean of its divisors is an integer number (17413704).

Almost surely, 2^103238139 is an apocalyptic number.

103238139 is a deficient number, since it is larger than the sum of its proper divisors (36071493).

103238139 is an equidigital number, since it uses as much as digits as its factorization.

103238139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414697.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 103238139 is about 10160.6170580334. The cubic root of 103238139 is about 469.1157949708.

The spelling of 103238139 in words is "one hundred three million, two hundred thirty-eight thousand, one hundred thirty-nine".