13256477 has 4 divisors (see below), whose sum is σ = 14276220. Its totient is φ = 12236736.

The previous prime is 13256449. The next prime is 13256527. The reversal of 13256477 is 77465231.

13256477 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: 77465231 = 43 ⋅1801517.

It can be written as a sum of positive squares in 2 ways, for example, as 3308761 + 9947716 = 1819^2 + 3154^2 .

It is a cyclic number.

It is not a de Polignac number, because 13256477 - 2¹² = 13252381 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 (13256417) 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, 509852 + ... + 509877.

It is an arithmetic number, because the mean of its divisors is an integer number (3569055).

Almost surely, 2^13256477 is an apocalyptic number.

It is an amenable number.

13256477 is a deficient number, since it is larger than the sum of its proper divisors (1019743).

13256477 is a wasteful number, since it uses less digits than its factorization.

13256477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019742.

The product of its digits is 35280, while the sum is 35.

The square root of 13256477 is about 3640.9445203134. The cubic root of 13256477 is about 236.6697257644.

The spelling of 13256477 in words is "thirteen million, two hundred fifty-six thousand, four hundred seventy-seven".