126778882 has 4 divisors (see below), whose sum is σ = 190168326. Its totient is φ = 63389440.

The previous prime is 126778867. The next prime is 126778907. The reversal of 126778882 is 288877621.

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

It can be written as a sum of positive squares in only one way, i.e., 126315121 + 463761 = 11239^2 + 681^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31694719 + ... + 31694722.

Almost surely, 2^126778882 is an apocalyptic number.

126778882 is a deficient number, since it is larger than the sum of its proper divisors (63389444).

126778882 is an equidigital number, since it uses as much as digits as its factorization.

126778882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63389443.

The product of its digits is 602112, while the sum is 49.

The square root of 126778882 is about 11259.6128707873. The cubic root of 126778882 is about 502.3606795103.

The spelling of 126778882 in words is "one hundred twenty-six million, seven hundred seventy-eight thousand, eight hundred eighty-two".