103165621 has 8 divisors (see below), whose sum is σ = 111259904. Its totient is φ = 95094000.

The previous prime is 103165619. The next prime is 103165631. The reversal of 103165621 is 126561301.

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 103165621 - 2¹ = 103165619 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 (103165631) 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, 4480 + ... + 15046.

It is an arithmetic number, because the mean of its divisors is an integer number (13907488).

Almost surely, 2^103165621 is an apocalyptic number.

It is an amenable number.

103165621 is a deficient number, since it is larger than the sum of its proper divisors (8094283).

103165621 is a wasteful number, since it uses less digits than its factorization.

103165621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11331.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 103165621 is about 10157.0478486615. The cubic root of 103165621 is about 469.0059282487.

The spelling of 103165621 in words is "one hundred three million, one hundred sixty-five thousand, six hundred twenty-one".