126344261 has 4 divisors (see below), whose sum is σ = 126376524. Its totient is φ = 126312000.

The previous prime is 126344227. The next prime is 126344279. The reversal of 126344261 is 162443621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47472100 + 78872161 = 6890^2 + 8881^2 .

It is a cyclic number.

It is not a de Polignac number, because 126344261 - 2²² = 122149957 is a prime.

It is a super-2 number, since 2×126344261² = 31925744575272242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126344291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9290 + ... + 18411.

It is an arithmetic number, because the mean of its divisors is an integer number (31594131).

Almost surely, 2^126344261 is an apocalyptic number.

It is an amenable number.

126344261 is a deficient number, since it is larger than the sum of its proper divisors (32263).

126344261 is an equidigital number, since it uses as much as digits as its factorization.

126344261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32262.

The product of its digits is 6912, while the sum is 29.

The square root of 126344261 is about 11240.2963039237. The cubic root of 126344261 is about 501.7859610905.

Adding to 126344261 its reverse (162443621), we get a palindrome (288787882).

The spelling of 126344261 in words is "one hundred twenty-six million, three hundred forty-four thousand, two hundred sixty-one".