103490518 has 4 divisors (see below), whose sum is σ = 155235780. Its totient is φ = 51745258.

The previous prime is 103490479. The next prime is 103490539. The reversal of 103490518 is 815094301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 815094301 = 7 ⋅116442043.

It is a self number, because there is not a number n which added to its sum of digits gives 103490518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25872628 + ... + 25872631.

It is an arithmetic number, because the mean of its divisors is an integer number (38808945).

Almost surely, 2^103490518 is an apocalyptic number.

103490518 is a deficient number, since it is larger than the sum of its proper divisors (51745262).

103490518 is an equidigital number, since it uses as much as digits as its factorization.

103490518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51745261.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 103490518 is about 10173.0289491380. The cubic root of 103490518 is about 469.4977553261.

The spelling of 103490518 in words is "one hundred three million, four hundred ninety thousand, five hundred eighteen".