812373119 has 4 divisors (see below), whose sum is σ = 814113144. Its totient is φ = 810633096.

The previous prime is 812373113. The next prime is 812373131. The reversal of 812373119 is 911373218.

It is a happy number.

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 812373119 - 2⁴ = 812373103 is a prime.

It is a super-2 number, since 2×812373119² = 1319900168947576322, which contains 22 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 (812373113) 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, 869312 + ... + 870245.

It is an arithmetic number, because the mean of its divisors is an integer number (203528286).

Almost surely, 2^812373119 is an apocalyptic number.

812373119 is a deficient number, since it is larger than the sum of its proper divisors (1740025).

812373119 is a wasteful number, since it uses less digits than its factorization.

812373119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740024.

The product of its digits is 9072, while the sum is 35.

The square root of 812373119 is about 28502.1599006110. The cubic root of 812373119 is about 933.0792138810.

Subtracting 812373119 from its reverse (911373218), we obtain a palindrome (99000099).

The spelling of 812373119 in words is "eight hundred twelve million, three hundred seventy-three thousand, one hundred nineteen".