126537953 has 8 divisors (see below), whose sum is σ = 134463240. Its totient is φ = 118666240.

The previous prime is 126537937. The next prime is 126537989. The reversal of 126537953 is 359735621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27793984 + 98743969 = 5272^2 + 9937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126537953 - 2⁴ = 126537937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126537953.

It is not an unprimeable number, because it can be changed into a prime (126537913) 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 7 ways as a sum of consecutive naturals, for example, 8468 + ... + 18021.

It is an arithmetic number, because the mean of its divisors is an integer number (16807905).

Almost surely, 2^126537953 is an apocalyptic number.

It is an amenable number.

126537953 is a deficient number, since it is larger than the sum of its proper divisors (7925287).

126537953 is a wasteful number, since it uses less digits than its factorization.

126537953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26787.

The product of its digits is 170100, while the sum is 41.

The square root of 126537953 is about 11248.9089693179. The cubic root of 126537953 is about 502.0422510641.

The spelling of 126537953 in words is "one hundred twenty-six million, five hundred thirty-seven thousand, nine hundred fifty-three".