126881974 has 4 divisors (see below), whose sum is σ = 190322964. Its totient is φ = 63440986.

The previous prime is 126881969. The next prime is 126882023. The reversal of 126881974 is 479188621.

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

It is a super-2 number, since 2×126881974² = 32198070652273352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31720492 + ... + 31720495.

It is an arithmetic number, because the mean of its divisors is an integer number (47580741).

Almost surely, 2^126881974 is an apocalyptic number.

126881974 is a deficient number, since it is larger than the sum of its proper divisors (63440990).

126881974 is an equidigital number, since it uses as much as digits as its factorization.

126881974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63440989.

The product of its digits is 193536, while the sum is 46.

The square root of 126881974 is about 11264.1898954164. The cubic root of 126881974 is about 502.4968097947.

The spelling of 126881974 in words is "one hundred twenty-six million, eight hundred eighty-one thousand, nine hundred seventy-four".