103221747 has 12 divisors (see below), whose sum is σ = 149190600. Its totient is φ = 68771808.

The previous prime is 103221719. The next prime is 103221751. The reversal of 103221747 is 747122301.

It is a happy number.

It is not a de Polignac number, because 103221747 - 2¹⁸ = 102959603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103221747.

It is not an unprimeable number, because it can be changed into a prime (103221707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19879 + ... + 24527.

It is an arithmetic number, because the mean of its divisors is an integer number (12432550).

Almost surely, 2^103221747 is an apocalyptic number.

103221747 is a deficient number, since it is larger than the sum of its proper divisors (45968853).

103221747 is a wasteful number, since it uses less digits than its factorization.

103221747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122 (or 7119 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 103221747 is about 10159.8103820888. The cubic root of 103221747 is about 469.0909651511.

The spelling of 103221747 in words is "one hundred three million, two hundred twenty-one thousand, seven hundred forty-seven".