126649732 has 18 divisors (see below), whose sum is σ = 243618494. Its totient is φ = 57567840.

The previous prime is 126649717. The next prime is 126649741. The reversal of 126649732 is 237946621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 124411716 + 2238016 = 11154^2 + 1496^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130353 + ... + 131320.

Almost surely, 2^126649732 is an apocalyptic number.

It is an amenable number.

126649732 is a deficient number, since it is larger than the sum of its proper divisors (116968762).

126649732 is a wasteful number, since it uses less digits than its factorization.

126649732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261699 (or 261686 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 126649732 is about 11253.8763099654. The cubic root of 126649732 is about 502.1900361447.

The spelling of 126649732 in words is "one hundred twenty-six million, six hundred forty-nine thousand, seven hundred thirty-two".