13772461 has 4 divisors (see below), whose sum is σ = 13908924. Its totient is φ = 13636000.

The previous prime is 13772459. The next prime is 13772497. The reversal of 13772461 is 16427731.

13772461 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.

It can be written as a sum of positive squares in 2 ways, for example, as 12916836 + 855625 = 3594^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 13772461 - 2¹ = 13772459 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 (13772411) 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, 68080 + ... + 68281.

It is an arithmetic number, because the mean of its divisors is an integer number (3477231).

Almost surely, 2^13772461 is an apocalyptic number.

It is an amenable number.

13772461 is a deficient number, since it is larger than the sum of its proper divisors (136463).

13772461 is a wasteful number, since it uses less digits than its factorization.

13772461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136462.

The product of its digits is 7056, while the sum is 31.

The square root of 13772461 is about 3711.1266483374. The cubic root of 13772461 is about 239.7013704706.

The spelling of 13772461 in words is "thirteen million, seven hundred seventy-two thousand, four hundred sixty-one".