126741261 has 4 divisors (see below), whose sum is σ = 168988352. Its totient is φ = 84494172.

The previous prime is 126741259. The next prime is 126741269. The reversal of 126741261 is 162147621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 126741261 - 2¹ = 126741259 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 (126741269) 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, 21123541 + ... + 21123546.

It is an arithmetic number, because the mean of its divisors is an integer number (42247088).

Almost surely, 2^126741261 is an apocalyptic number.

It is an amenable number.

126741261 is a deficient number, since it is larger than the sum of its proper divisors (42247091).

126741261 is an equidigital number, since it uses as much as digits as its factorization.

126741261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42247090.

The product of its digits is 4032, while the sum is 30.

The square root of 126741261 is about 11257.9421298921. The cubic root of 126741261 is about 502.3109835869.

Adding to 126741261 its reverse (162147621), we get a palindrome (288888882).

The spelling of 126741261 in words is "one hundred twenty-six million, seven hundred forty-one thousand, two hundred sixty-one".