126980278 has 16 divisors (see below), whose sum is σ = 196890624. Its totient is φ = 61355880.

The previous prime is 126980267. The next prime is 126980291. The reversal of 126980278 is 872089621.

It is a super-2 number, since 2×126980278² = 32247982001914568, 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80251 + ... + 81817.

It is an arithmetic number, because the mean of its divisors is an integer number (12305664).

Almost surely, 2^126980278 is an apocalyptic number.

126980278 is a deficient number, since it is larger than the sum of its proper divisors (69910346).

126980278 is a wasteful number, since it uses less digits than its factorization.

126980278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 126980278 is about 11268.5526133572. The cubic root of 126980278 is about 502.6265489876.

The spelling of 126980278 in words is "one hundred twenty-six million, nine hundred eighty thousand, two hundred seventy-eight".