126732556 has 12 divisors (see below), whose sum is σ = 223817440. Its totient is φ = 62784720.

The previous prime is 126732547. The next prime is 126732583. The reversal of 126732556 is 655237621.

It is a super-2 number, since 2×126732556² = 32122281500586272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 144900 + ... + 145771.

Almost surely, 2^126732556 is an apocalyptic number.

It is an amenable number.

126732556 is a deficient number, since it is larger than the sum of its proper divisors (97084884).

126732556 is a wasteful number, since it uses less digits than its factorization.

126732556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290784 (or 290782 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 126732556 is about 11257.5555073026. Note that the first 4 decimals coincide. The cubic root of 126732556 is about 502.2994832089.

The spelling of 126732556 in words is "one hundred twenty-six million, seven hundred thirty-two thousand, five hundred fifty-six".