126997814 has 4 divisors (see below), whose sum is σ = 190496724. Its totient is φ = 63498906.

The previous prime is 126997813. The next prime is 126997817. The reversal of 126997814 is 418799621.

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

It is a super-2 number, since 2×126997814² = 32256889521557192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126997811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31749452 + ... + 31749455.

It is an arithmetic number, because the mean of its divisors is an integer number (47624181).

Almost surely, 2^126997814 is an apocalyptic number.

126997814 is a deficient number, since it is larger than the sum of its proper divisors (63498910).

126997814 is an equidigital number, since it uses as much as digits as its factorization.

126997814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63498909.

The product of its digits is 217728, while the sum is 47.

The square root of 126997814 is about 11269.3306811008. The cubic root of 126997814 is about 502.6496855292.

The spelling of 126997814 in words is "one hundred twenty-six million, nine hundred ninety-seven thousand, eight hundred fourteen".