126012611 has 4 divisors (see below), whose sum is σ = 127168800. Its totient is φ = 124856424.

The previous prime is 126012589. The next prime is 126012643. The reversal of 126012611 is 116210621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126012611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126012811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577931 + ... + 578148.

It is an arithmetic number, because the mean of its divisors is an integer number (31792200).

Almost surely, 2^126012611 is an apocalyptic number.

126012611 is a deficient number, since it is larger than the sum of its proper divisors (1156189).

126012611 is a wasteful number, since it uses less digits than its factorization.

126012611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156188.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 126012611 is about 11225.5338848538. The cubic root of 126012611 is about 501.3465185206.

The spelling of 126012611 in words is "one hundred twenty-six million, twelve thousand, six hundred eleven".