12495278 has 8 divisors (see below), whose sum is σ = 18807768. Its totient is φ = 6226024.

The previous prime is 12495277. The next prime is 12495281. The reversal of 12495278 is 87259421.

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

It is a super-2 number, since 2×12495278² = 312263944594568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12495277) 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, 10076 + ... + 11247.

It is an arithmetic number, because the mean of its divisors is an integer number (2350971).

Almost surely, 2^12495278 is an apocalyptic number.

12495278 is a deficient number, since it is larger than the sum of its proper divisors (6312490).

12495278 is a wasteful number, since it uses less digits than its factorization.

12495278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21618.

The product of its digits is 40320, while the sum is 38.

The square root of 12495278 is about 3534.8660512104. The cubic root of 12495278 is about 232.0502145568.

The spelling of 12495278 in words is "twelve million, four hundred ninety-five thousand, two hundred seventy-eight".