126132637 has 4 divisors (see below), whose sum is σ = 126187740. Its totient is φ = 126077536.

The previous prime is 126132607. The next prime is 126132647. The reversal of 126132637 is 736231621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 736231621 = 2663 ⋅276467.

It can be written as a sum of positive squares in 2 ways, for example, as 3786916 + 122345721 = 1946^2 + 11061^2 .

It is a cyclic number.

It is not a de Polignac number, because 126132637 - 2⁷ = 126132509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126132599 and 126132608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126132607) 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, 23962 + ... + 28747.

It is an arithmetic number, because the mean of its divisors is an integer number (31546935).

Almost surely, 2^126132637 is an apocalyptic number.

It is an amenable number.

126132637 is a deficient number, since it is larger than the sum of its proper divisors (55103).

126132637 is an equidigital number, since it uses as much as digits as its factorization.

126132637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55102.

The product of its digits is 9072, while the sum is 31.

The square root of 126132637 is about 11230.8787278645. The cubic root of 126132637 is about 501.5056441868.

The spelling of 126132637 in words is "one hundred twenty-six million, one hundred thirty-two thousand, six hundred thirty-seven".