126672577 has 4 divisors (see below), whose sum is σ = 126739456. Its totient is φ = 126605700.

The previous prime is 126672521. The next prime is 126672589. The reversal of 126672577 is 775276621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 775276621 = 7 ⋅110753803.

It is a cyclic number.

It is not a de Polignac number, because 126672577 - 2¹¹ = 126670529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126672517) 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, 30513 + ... + 34414.

It is an arithmetic number, because the mean of its divisors is an integer number (31684864).

Almost surely, 2^126672577 is an apocalyptic number.

It is an amenable number.

126672577 is a deficient number, since it is larger than the sum of its proper divisors (66879).

126672577 is an equidigital number, since it uses as much as digits as its factorization.

126672577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66878.

The product of its digits is 246960, while the sum is 43.

The square root of 126672577 is about 11254.8912478087. The cubic root of 126672577 is about 502.2202292383.

The spelling of 126672577 in words is "one hundred twenty-six million, six hundred seventy-two thousand, five hundred seventy-seven".