13919461 has 4 divisors (see below), whose sum is σ = 13926924. Its totient is φ = 13912000.

The previous prime is 13919417. The next prime is 13919467. The reversal of 13919461 is 16491931.

It is a happy number.

13919461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5904900 + 8014561 = 2430^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 13919461 - 2¹¹ = 13917413 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 (13919467) 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, 1821 + ... + 5581.

It is an arithmetic number, because the mean of its divisors is an integer number (3481731).

Almost surely, 2^13919461 is an apocalyptic number.

13919461 is the 1669-th centered decagonal number.

It is an amenable number.

13919461 is a deficient number, since it is larger than the sum of its proper divisors (7463).

13919461 is an equidigital number, since it uses as much as digits as its factorization.

13919461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462.

The product of its digits is 5832, while the sum is 34.

The square root of 13919461 is about 3730.8793869542. The cubic root of 13919461 is about 240.5511695906.

It can be divided in two parts, 139 and 19461, that added together give a square (19600 = 140²).

The spelling of 13919461 in words is "thirteen million, nine hundred nineteen thousand, four hundred sixty-one".