126966291 has 8 divisors (see below), whose sum is σ = 169400784. Its totient is φ = 84588000.

The previous prime is 126966269. The next prime is 126966331. The reversal of 126966291 is 192669621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126966291 - 2⁷ = 126966163 is a prime.

It is a super-2 number, since 2×126966291² = 32240878100593362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126966221) by changing a digit.

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, 8460 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (21175098).

Almost surely, 2^126966291 is an apocalyptic number.

126966291 is a deficient number, since it is larger than the sum of its proper divisors (42434493).

126966291 is a wasteful number, since it uses less digits than its factorization.

126966291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28101.

The product of its digits is 69984, while the sum is 42.

The square root of 126966291 is about 11267.9319753005. The cubic root of 126966291 is about 502.6080933770.

The spelling of 126966291 in words is "one hundred twenty-six million, nine hundred sixty-six thousand, two hundred ninety-one".