13577138 has 4 divisors (see below), whose sum is σ = 20365710. Its totient is φ = 6788568.

The previous prime is 13577131. The next prime is 13577141. The reversal of 13577138 is 83177531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83177531 = 89 ⋅934579.

It can be written as a sum of positive squares in only one way, i.e., 12909649 + 667489 = 3593^2 + 817^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13577098 and 13577107.

It is not an unprimeable number, because it can be changed into a prime (13577131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3394283 + ... + 3394286.

Almost surely, 2^13577138 is an apocalyptic number.

13577138 is a deficient number, since it is larger than the sum of its proper divisors (6788572).

13577138 is an equidigital number, since it uses as much as digits as its factorization.

13577138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6788571.

The product of its digits is 17640, while the sum is 35.

The square root of 13577138 is about 3684.7168140849. The cubic root of 13577138 is about 238.5628113452.

The spelling of 13577138 in words is "thirteen million, five hundred seventy-seven thousand, one hundred thirty-eight".