126541069 has 4 divisors (see below), whose sum is σ = 126563580. Its totient is φ = 126518560.

The previous prime is 126541057. The next prime is 126541109. The reversal of 126541069 is 960145621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6375625 + 120165444 = 2525^2 + 10962^2 .

It is a cyclic number.

It is not a de Polignac number, because 126541069 - 2⁷ = 126540941 is a prime.

It is a super-2 number, since 2×126541069² = 32025284287325522, 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 (126541669) 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, 5079 + ... + 16699.

It is an arithmetic number, because the mean of its divisors is an integer number (31640895).

Almost surely, 2^126541069 is an apocalyptic number.

It is an amenable number.

126541069 is a deficient number, since it is larger than the sum of its proper divisors (22511).

126541069 is a wasteful number, since it uses less digits than its factorization.

126541069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22510.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 126541069 is about 11249.0474707861. The cubic root of 126541069 is about 502.0463719643.

The spelling of 126541069 in words is "one hundred twenty-six million, five hundred forty-one thousand, sixty-nine".