103047721 has 8 divisors (see below), whose sum is σ = 117834624. Its totient is φ = 88277280.

The previous prime is 103047709. The next prime is 103047733. The reversal of 103047721 is 127740301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (103047709) and next prime (103047733).

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

It is not a de Polignac number, because 103047721 - 2⁹ = 103047209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103047781) 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, 15636 + ... + 21226.

It is an arithmetic number, because the mean of its divisors is an integer number (14729328).

Almost surely, 2^103047721 is an apocalyptic number.

It is an amenable number.

103047721 is a deficient number, since it is larger than the sum of its proper divisors (14786903).

103047721 is an equidigital number, since it uses as much as digits as its factorization.

103047721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8231.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 103047721 is about 10151.2423377634. The cubic root of 103047721 is about 468.8271966253.

The spelling of 103047721 in words is "one hundred three million, forty-seven thousand, seven hundred twenty-one".