126144637 has 2 divisors, whose sum is σ = 126144638. Its totient is φ = 126144636.

The previous prime is 126144617. The next prime is 126144713. The reversal of 126144637 is 736441621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121418361 + 4726276 = 11019^2 + 2174^2 .

It is a cyclic number.

It is not a de Polignac number, because 126144637 - 2⁷ = 126144509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126144617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63072318 + 63072319.

It is an arithmetic number, because the mean of its divisors is an integer number (63072319).

Almost surely, 2^126144637 is an apocalyptic number.

It is an amenable number.

126144637 is a deficient number, since it is larger than the sum of its proper divisors (1).

126144637 is an equidigital number, since it uses as much as digits as its factorization.

126144637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 126144637 is about 11231.4129565251. The cubic root of 126144637 is about 501.5215477548.

The spelling of 126144637 in words is "one hundred twenty-six million, one hundred forty-four thousand, six hundred thirty-seven".