126778914 has 12 divisors (see below), whose sum is σ = 274687686. Its totient is φ = 42259632.

The previous prime is 126778907. The next prime is 126778969. The reversal of 126778914 is 419877621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 115670025 + 11108889 = 10755^2 + 3333^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126778914.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3521619 + ... + 3521654.

Almost surely, 2^126778914 is an apocalyptic number.

126778914 is an abundant number, since it is smaller than the sum of its proper divisors (147908772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126778914 is a wasteful number, since it uses less digits than its factorization.

126778914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043281 (or 7043278 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 126778914 is about 11259.6142917953. The cubic root of 126778914 is about 502.3607217770.

The spelling of 126778914 in words is "one hundred twenty-six million, seven hundred seventy-eight thousand, nine hundred fourteen".