13941577 has 4 divisors (see below), whose sum is σ = 15014020. Its totient is φ = 12869136.

The previous prime is 13941559. The next prime is 13941607. The reversal of 13941577 is 77514931.

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 808201 + 13133376 = 899^2 + 3624^2 .

It is a cyclic number.

It is not a de Polignac number, because 13941577 - 2¹¹ = 13939529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13941527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536202 + ... + 536227.

It is an arithmetic number, because the mean of its divisors is an integer number (3753505).

Almost surely, 2^13941577 is an apocalyptic number.

It is an amenable number.

13941577 is a deficient number, since it is larger than the sum of its proper divisors (1072443).

13941577 is a wasteful number, since it uses less digits than its factorization.

13941577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072442.

The product of its digits is 26460, while the sum is 37.

The square root of 13941577 is about 3733.8421230684. The cubic root of 13941577 is about 240.6785024561.

The spelling of 13941577 in words is "thirteen million, nine hundred forty-one thousand, five hundred seventy-seven".