12312481 has 8 divisors (see below), whose sum is σ = 12484640. Its totient is φ = 12141792.

The previous prime is 12312467. The next prime is 12312493. The reversal of 12312481 is 18421321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12312481 - 2⁷ = 12312353 is a prime.

It is a super-2 number, since 2×12312481² = 303194376750722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (12312401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39181 + ... + 39493.

It is an arithmetic number, because the mean of its divisors is an integer number (1560580).

Almost surely, 2^12312481 is an apocalyptic number.

It is an amenable number.

12312481 is a deficient number, since it is larger than the sum of its proper divisors (172159).

12312481 is a wasteful number, since it uses less digits than its factorization.

12312481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735.

The product of its digits is 384, while the sum is 22.

The square root of 12312481 is about 3508.9145045156. The cubic root of 12312481 is about 230.9130748697.

The spelling of 12312481 in words is "twelve million, three hundred twelve thousand, four hundred eighty-one".