126649748 has 12 divisors (see below), whose sum is σ = 221816532. Its totient is φ = 63273600.

The previous prime is 126649741. The next prime is 126649751. The reversal of 126649748 is 847946621.

It can be written as a sum of positive squares in 2 ways, for example, as 64995844 + 61653904 = 8062^2 + 7852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126649741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6965 + ... + 17372.

It is an arithmetic number, because the mean of its divisors is an integer number (18484711).

Almost surely, 2^126649748 is an apocalyptic number.

It is an amenable number.

126649748 is a deficient number, since it is larger than the sum of its proper divisors (95166784).

126649748 is a wasteful number, since it uses less digits than its factorization.

126649748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25642 (or 25640 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 126649748 is about 11253.8770208315. The cubic root of 126649748 is about 502.1900572924.

The spelling of 126649748 in words is "one hundred twenty-six million, six hundred forty-nine thousand, seven hundred forty-eight".