126780158 has 4 divisors (see below), whose sum is σ = 190170240. Its totient is φ = 63390078.

The previous prime is 126780139. The next prime is 126780161. The reversal of 126780158 is 851087621.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31695038 + ... + 31695041.

It is an arithmetic number, because the mean of its divisors is an integer number (47542560).

Almost surely, 2^126780158 is an apocalyptic number.

126780158 is a deficient number, since it is larger than the sum of its proper divisors (63390082).

126780158 is an equidigital number, since it uses as much as digits as its factorization.

126780158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63390081.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 126780158 is about 11259.6695333389. The cubic root of 126780158 is about 502.3623648859.

The spelling of 126780158 in words is "one hundred twenty-six million, seven hundred eighty thousand, one hundred fifty-eight".