12542782 has 8 divisors (see below), whose sum is σ = 21501936. Its totient is φ = 5375472.

The previous prime is 12542773. The next prime is 12542791. The reversal of 12542782 is 28724521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12542773) and next prime (12542791).

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

It is a super-3 number, since 3×12542782³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447943 + ... + 447970.

It is an arithmetic number, because the mean of its divisors is an integer number (2687742).

Almost surely, 2^12542782 is an apocalyptic number.

12542782 is a deficient number, since it is larger than the sum of its proper divisors (8959154).

12542782 is an equidigital number, since it uses as much as digits as its factorization.

12542782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895922.

The product of its digits is 8960, while the sum is 31.

The square root of 12542782 is about 3541.5790263666. The cubic root of 12542782 is about 232.3439087962.

The spelling of 12542782 in words is "twelve million, five hundred forty-two thousand, seven hundred eighty-two".