126687941 has 4 divisors (see below), whose sum is σ = 126735084. Its totient is φ = 126640800.

The previous prime is 126687931. The next prime is 126687947. The reversal of 126687941 is 149786621.

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 48011041 + 78676900 = 6929^2 + 8870^2 .

It is a cyclic number.

It is not a de Polignac number, because 126687941 - 2¹⁸ = 126425797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126687892 and 126687901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126687947) 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, 19280 + ... + 25001.

It is an arithmetic number, because the mean of its divisors is an integer number (31683771).

Almost surely, 2^126687941 is an apocalyptic number.

It is an amenable number.

126687941 is a deficient number, since it is larger than the sum of its proper divisors (47143).

126687941 is an equidigital number, since it uses as much as digits as its factorization.

126687941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47142.

The product of its digits is 145152, while the sum is 44.

The square root of 126687941 is about 11255.5737748015. The cubic root of 126687941 is about 502.2405330269.

The spelling of 126687941 in words is "one hundred twenty-six million, six hundred eighty-seven thousand, nine hundred forty-one".