126725741 has 4 divisors (see below), whose sum is σ = 127956192. Its totient is φ = 125495292.

The previous prime is 126725719. The next prime is 126725783. The reversal of 126725741 is 147527621.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126725741 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 (126721741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615071 + ... + 615276.

It is an arithmetic number, because the mean of its divisors is an integer number (31989048).

Almost surely, 2^126725741 is an apocalyptic number.

It is an amenable number.

126725741 is a deficient number, since it is larger than the sum of its proper divisors (1230451).

126725741 is a wasteful number, since it uses less digits than its factorization.

126725741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230450.

The product of its digits is 23520, while the sum is 35.

The square root of 126725741 is about 11257.2528176283. The cubic root of 126725741 is about 502.2904793863.

The spelling of 126725741 in words is "one hundred twenty-six million, seven hundred twenty-five thousand, seven hundred forty-one".