103722621 has 8 divisors (see below), whose sum is σ = 142758144. Its totient is φ = 66917760.

The previous prime is 103722607. The next prime is 103722623. The reversal of 103722621 is 126227301.

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

It is not a de Polignac number, because 103722621 - 2⁶ = 103722557 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103722591 and 103722600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103722623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557556 + ... + 557741.

It is an arithmetic number, because the mean of its divisors is an integer number (17844768).

Almost surely, 2^103722621 is an apocalyptic number.

It is an amenable number.

103722621 is a deficient number, since it is larger than the sum of its proper divisors (39035523).

103722621 is a wasteful number, since it uses less digits than its factorization.

103722621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115331.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 103722621 is about 10184.4303228016. The cubic root of 103722621 is about 469.8484814137.

Adding to 103722621 its reverse (126227301), we get a palindrome (229949922).

The spelling of 103722621 in words is "one hundred three million, seven hundred twenty-two thousand, six hundred twenty-one".