13561423 has 4 divisors (see below), whose sum is σ = 13574088. Its totient is φ = 13548760.

The previous prime is 13561417. The next prime is 13561433. The reversal of 13561423 is 32416531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32416531 = 7 ⋅4630933.

It is a cyclic number.

It is not a de Polignac number, because 13561423 - 2⁵ = 13561391 is a prime.

It is a super-3 number, since 3×13561423³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561433) 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, 4561 + ... + 6922.

It is an arithmetic number, because the mean of its divisors is an integer number (3393522).

Almost surely, 2^13561423 is an apocalyptic number.

13561423 is a deficient number, since it is larger than the sum of its proper divisors (12665).

13561423 is a wasteful number, since it uses less digits than its factorization.

13561423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12664.

The product of its digits is 2160, while the sum is 25.

The square root of 13561423 is about 3682.5837397132. The cubic root of 13561423 is about 238.4707334724.

Adding to 13561423 its reverse (32416531), we get a palindrome (45977954).

The spelling of 13561423 in words is "thirteen million, five hundred sixty-one thousand, four hundred twenty-three".