126500554 has 8 divisors (see below), whose sum is σ = 189815940. Its totient is φ = 63228576.

The previous prime is 126500533. The next prime is 126500557. The reversal of 126500554 is 455005621.

It can be written as a sum of positive squares in 2 ways, for example, as 119355625 + 7144929 = 10925^2 + 2673^2 .

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

It is not an unprimeable number, because it can be changed into a prime (126500557) 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, 2179 + ... + 16054.

Almost surely, 2^126500554 is an apocalyptic number.

126500554 is a deficient number, since it is larger than the sum of its proper divisors (63315386).

126500554 is a wasteful number, since it uses less digits than its factorization.

126500554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21704.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 126500554 is about 11247.2465074791. The cubic root of 126500554 is about 501.9927857251.

The spelling of 126500554 in words is "one hundred twenty-six million, five hundred thousand, five hundred fifty-four".