103840661 has 8 divisors (see below), whose sum is σ = 105845760. Its totient is φ = 101854368.

The previous prime is 103840651. The next prime is 103840663. The reversal of 103840661 is 166048301.

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 103840661 - 2²² = 99646357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103840663) 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, 6710 + ... + 15896.

It is an arithmetic number, because the mean of its divisors is an integer number (13230720).

Almost surely, 2^103840661 is an apocalyptic number.

It is an amenable number.

103840661 is a deficient number, since it is larger than the sum of its proper divisors (2005099).

103840661 is an equidigital number, since it uses as much as digits as its factorization.

103840661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9403.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 103840661 is about 10190.2237953835. The cubic root of 103840661 is about 470.0266485569.

Adding to 103840661 its reverse (166048301), we get a palindrome (269888962).

The spelling of 103840661 in words is "one hundred three million, eight hundred forty thousand, six hundred sixty-one".