126320577 has 8 divisors (see below), whose sum is σ = 175750464. Its totient is φ = 80552208.

The previous prime is 126320543. The next prime is 126320603. The reversal of 126320577 is 775023621.

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

It is not a de Polignac number, because 126320577 - 2¹⁵ = 126287809 is a prime.

It is a super-2 number, since 2×126320577² = 31913776347225858, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (126320507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915298 + ... + 915435.

It is an arithmetic number, because the mean of its divisors is an integer number (21968808).

Almost surely, 2^126320577 is an apocalyptic number.

It is an amenable number.

126320577 is a deficient number, since it is larger than the sum of its proper divisors (49429887).

126320577 is a wasteful number, since it uses less digits than its factorization.

126320577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830759.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 126320577 is about 11239.2427236002. The cubic root of 126320577 is about 501.7546048546.

The spelling of 126320577 in words is "one hundred twenty-six million, three hundred twenty thousand, five hundred seventy-seven".