13621465 has 16 divisors (see below), whose sum is σ = 19204416. Its totient is φ = 9144000.

The previous prime is 13621463. The next prime is 13621469. The reversal of 13621465 is 56412631.

13621465 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13621465 - 2¹ = 13621463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13621463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8811 + ... + 10240.

It is an arithmetic number, because the mean of its divisors is an integer number (1200276).

Almost surely, 2^13621465 is an apocalyptic number.

It is an amenable number.

13621465 is a deficient number, since it is larger than the sum of its proper divisors (5582951).

13621465 is a wasteful number, since it uses less digits than its factorization.

13621465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19080.

The product of its digits is 4320, while the sum is 28.

The square root of 13621465 is about 3690.7268931743. The cubic root of 13621465 is about 238.8221513794.

The spelling of 13621465 in words is "thirteen million, six hundred twenty-one thousand, four hundred sixty-five".