126322261 has 12 divisors (see below), whose sum is σ = 139975968. Its totient is φ = 113886864.

The previous prime is 126322247. The next prime is 126322283. The reversal of 126322261 is 162223621.

It is not a de Polignac number, because 126322261 - 2⁹ = 126321749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126322961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1425 + ... + 15958.

It is an arithmetic number, because the mean of its divisors is an integer number (11664664).

Almost surely, 2^126322261 is an apocalyptic number.

It is an amenable number.

126322261 is a deficient number, since it is larger than the sum of its proper divisors (13653707).

126322261 is a wasteful number, since it uses less digits than its factorization.

126322261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17452 (or 17439 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 126322261 is about 11239.3176394299. The cubic root of 126322261 is about 501.7568345018.

Adding to 126322261 its reverse (162223621), we get a palindrome (288545882).

The spelling of 126322261 in words is "one hundred twenty-six million, three hundred twenty-two thousand, two hundred sixty-one".