126678772 has 36 divisors (see below), whose sum is σ = 251563648. Its totient is φ = 55717200.

The previous prime is 126678751. The next prime is 126678793. The reversal of 126678772 is 277876621.

It is an interprime number because it is at equal distance from previous prime (126678751) and next prime (126678793).

It is a super-2 number, since 2×126678772² = 32095022550855968, 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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10783 + ... + 19225.

Almost surely, 2^126678772 is an apocalyptic number.

It is an amenable number.

126678772 is a deficient number, since it is larger than the sum of its proper divisors (124884876).

126678772 is a wasteful number, since it uses less digits than its factorization.

126678772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500 (or 8487 counting only the distinct ones).

The product of its digits is 395136, while the sum is 46.

The square root of 126678772 is about 11255.1664581205. The cubic root of 126678772 is about 502.2284162342.

The spelling of 126678772 in words is "one hundred twenty-six million, six hundred seventy-eight thousand, seven hundred seventy-two".