103918642 has 8 divisors (see below), whose sum is σ = 157257756. Its totient is φ = 51499392.

The previous prime is 103918631. The next prime is 103918649. The reversal of 103918642 is 246819301.

It can be written as a sum of positive squares in 2 ways, for example, as 84107241 + 19811401 = 9171^2 + 4451^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 103918598 and 103918607.

It is not an unprimeable number, because it can be changed into a prime (103918649) 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, 229683 + ... + 230134.

Almost surely, 2^103918642 is an apocalyptic number.

103918642 is a deficient number, since it is larger than the sum of its proper divisors (53339114).

103918642 is a wasteful number, since it uses less digits than its factorization.

103918642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459932.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 103918642 is about 10194.0493426312. The cubic root of 103918642 is about 470.1442774204.

The spelling of 103918642 in words is "one hundred three million, nine hundred eighteen thousand, six hundred forty-two".