103789138 has 4 divisors (see below), whose sum is σ = 155683710. Its totient is φ = 51894568.

The previous prime is 103789129. The next prime is 103789139. The reversal of 103789138 is 831987301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831987301 = 71 ⋅11718131.

It can be written as a sum of positive squares in only one way, i.e., 103489929 + 299209 = 10173^2 + 547^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103789138.

It is not an unprimeable number, because it can be changed into a prime (103789139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25947283 + ... + 25947286.

Almost surely, 2^103789138 is an apocalyptic number.

103789138 is a deficient number, since it is larger than the sum of its proper divisors (51894572).

103789138 is an equidigital number, since it uses as much as digits as its factorization.

103789138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51894571.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 103789138 is about 10187.6954214386. The cubic root of 103789138 is about 469.9488974166.

The spelling of 103789138 in words is "one hundred three million, seven hundred eighty-nine thousand, one hundred thirty-eight".