103988518 has 4 divisors (see below), whose sum is σ = 155982780. Its totient is φ = 51994258.

The previous prime is 103988513. The next prime is 103988527. The reversal of 103988518 is 815889301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 815889301 = 757 ⋅1077793.

It is a super-2 number, since 2×103988518² = 21627223751672648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103988513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25997128 + ... + 25997131.

It is an arithmetic number, because the mean of its divisors is an integer number (38995695).

Almost surely, 2^103988518 is an apocalyptic number.

103988518 is a deficient number, since it is larger than the sum of its proper divisors (51994262).

103988518 is an equidigital number, since it uses as much as digits as its factorization.

103988518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51994261.

The product of its (nonzero) digits is 69120, while the sum is 43.

The square root of 103988518 is about 10197.4760602808. The cubic root of 103988518 is about 470.2496304810.

The spelling of 103988518 in words is "one hundred three million, nine hundred eighty-eight thousand, five hundred eighteen".