12901823 has 4 divisors (see below), whose sum is σ = 14074728. Its totient is φ = 11728920.

The previous prime is 12901813. The next prime is 12901831. The reversal of 12901823 is 32810921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12901823 - 2¹⁶ = 12836287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12901792 and 12901801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12901813) 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, 586436 + ... + 586457.

It is an arithmetic number, because the mean of its divisors is an integer number (3518682).

Almost surely, 2^12901823 is an apocalyptic number.

12901823 is a deficient number, since it is larger than the sum of its proper divisors (1172905).

12901823 is a wasteful number, since it uses less digits than its factorization.

12901823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172904.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12901823 is about 3591.9107728339. The cubic root of 12901823 is about 234.5400570775.

It can be divided in two parts, 1290 and 1823, that added together give a palindrome (3113).

The spelling of 12901823 in words is "twelve million, nine hundred one thousand, eight hundred twenty-three".