103653421 has 4 divisors (see below), whose sum is σ = 104110272. Its totient is φ = 103196572.

The previous prime is 103653419. The next prime is 103653427. The reversal of 103653421 is 124356301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103653421 - 2¹ = 103653419 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 (103653427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228085 + ... + 228538.

It is an arithmetic number, because the mean of its divisors is an integer number (26027568).

Almost surely, 2^103653421 is an apocalyptic number.

It is an amenable number.

103653421 is a deficient number, since it is larger than the sum of its proper divisors (456851).

103653421 is an equidigital number, since it uses as much as digits as its factorization.

103653421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456850.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 103653421 is about 10181.0324132673. The cubic root of 103653421 is about 469.7439695020.

The spelling of 103653421 in words is "one hundred three million, six hundred fifty-three thousand, four hundred twenty-one".