126457537 has 2 divisors, whose sum is σ = 126457538. Its totient is φ = 126457536.

The previous prime is 126457531. The next prime is 126457547. The reversal of 126457537 is 735754621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119924401 + 6533136 = 10951^2 + 2556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126457537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126457537.

It is not a weakly prime, because it can be changed into another prime (126457531) 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 as a sum of consecutive naturals, namely, 63228768 + 63228769.

It is an arithmetic number, because the mean of its divisors is an integer number (63228769).

Almost surely, 2^126457537 is an apocalyptic number.

It is an amenable number.

126457537 is a deficient number, since it is larger than the sum of its proper divisors (1).

126457537 is an equidigital number, since it uses as much as digits as its factorization.

126457537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 40.

The square root of 126457537 is about 11245.3340101573. The cubic root of 126457537 is about 501.9358777481.

The spelling of 126457537 in words is "one hundred twenty-six million, four hundred fifty-seven thousand, five hundred thirty-seven".