13920455 has 4 divisors (see below), whose sum is σ = 16704552. Its totient is φ = 11136360.

The previous prime is 13920449. The next prime is 13920461. The reversal of 13920455 is 55402931.

13920455 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 an emirpimes, since its reverse is a distinct semiprime: 55402931 = 41 ⋅1351291.

It is an interprime number because it is at equal distance from previous prime (13920449) and next prime (13920461).

It is not a de Polignac number, because 13920455 - 2⁶ = 13920391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392041 + ... + 1392050.

It is an arithmetic number, because the mean of its divisors is an integer number (4176138).

Almost surely, 2^13920455 is an apocalyptic number.

13920455 is a deficient number, since it is larger than the sum of its proper divisors (2784097).

13920455 is an equidigital number, since it uses as much as digits as its factorization.

13920455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784096.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 13920455 is about 3731.0125971377. The cubic root of 13920455 is about 240.5568954390.

The spelling of 13920455 in words is "thirteen million, nine hundred twenty thousand, four hundred fifty-five".