12491354 has 4 divisors (see below), whose sum is σ = 18737034. Its totient is φ = 6245676.

The previous prime is 12491351. The next prime is 12491389. The reversal of 12491354 is 45319421.

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

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 6115729 = 2525^2 + 2473^2 .

It is not an unprimeable number, because it can be changed into a prime (12491351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3122837 + ... + 3122840.

Almost surely, 2^12491354 is an apocalyptic number.

12491354 is a deficient number, since it is larger than the sum of its proper divisors (6245680).

12491354 is an equidigital number, since it uses as much as digits as its factorization.

12491354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6245679.

The product of its digits is 4320, while the sum is 29.

The square root of 12491354 is about 3534.3109653792. The cubic root of 12491354 is about 232.0259211030.

The spelling of 12491354 in words is "twelve million, four hundred ninety-one thousand, three hundred fifty-four".