11913901 has 4 divisors (see below), whose sum is σ = 11923072. Its totient is φ = 11904732.

The previous prime is 11913899. The next prime is 11913953. The reversal of 11913901 is 10931911.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10931911 = 443 ⋅24677.

It is a cyclic number.

It is not a de Polignac number, because 11913901 - 2¹ = 11913899 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 (11913101) 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, 2235 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (2980768).

Almost surely, 2^11913901 is an apocalyptic number.

It is an amenable number.

11913901 is a deficient number, since it is larger than the sum of its proper divisors (9171).

11913901 is an equidigital number, since it uses as much as digits as its factorization.

11913901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9170.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 11913901 is about 3451.6519233550. The cubic root of 11913901 is about 228.3939851073.

The spelling of 11913901 in words is "eleven million, nine hundred thirteen thousand, nine hundred one".