126170261 has 8 divisors (see below), whose sum is σ = 146639040. Its totient is φ = 106312608.

The previous prime is 126170201. The next prime is 126170269. The reversal of 126170261 is 162071621.

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

It is a cyclic number.

It is not a de Polignac number, because 126170261 - 2⁶ = 126170197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126170261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126170269) 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, 152336 + ... + 153161.

It is an arithmetic number, because the mean of its divisors is an integer number (18329880).

Almost surely, 2^126170261 is an apocalyptic number.

It is an amenable number.

126170261 is a deficient number, since it is larger than the sum of its proper divisors (20468779).

126170261 is an equidigital number, since it uses as much as digits as its factorization.

126170261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305563.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 126170261 is about 11232.5536277376. The cubic root of 126170261 is about 501.5555037976. Note that the first 4 decimals are identical.

The spelling of 126170261 in words is "one hundred twenty-six million, one hundred seventy thousand, two hundred sixty-one".