12312953 has 4 divisors (see below), whose sum is σ = 12324468. Its totient is φ = 12301440.

The previous prime is 12312943. The next prime is 12312959. The reversal of 12312953 is 35921321.

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 6615184 + 5697769 = 2572^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 12312953 - 2¹⁴ = 12296569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12312959) 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, 3968 + ... + 6353.

It is an arithmetic number, because the mean of its divisors is an integer number (3081117).

Almost surely, 2^12312953 is an apocalyptic number.

It is an amenable number.

12312953 is a deficient number, since it is larger than the sum of its proper divisors (11515).

12312953 is a wasteful number, since it uses less digits than its factorization.

12312953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11514.

The product of its digits is 1620, while the sum is 26.

The square root of 12312953 is about 3508.9817611381. The cubic root of 12312953 is about 230.9160255227.

The spelling of 12312953 in words is "twelve million, three hundred twelve thousand, nine hundred fifty-three".