126377 has 4 divisors (see below), whose sum is σ = 129360. Its totient is φ = 123396.

The previous prime is 126359. The next prime is 126397. The reversal of 126377 is 773621.

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: 773621 = 787 ⋅983.

It is a cyclic number.

It is not a de Polignac number, because 126377 - 2¹⁰ = 125353 is a prime.

It is a super-2 number, since 2×126377² = 31942292258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427 + ... + 1512.

It is an arithmetic number, because the mean of its divisors is an integer number (32340).

2¹²⁶³⁷⁷ is an apocalyptic number.

It is an amenable number.

126377 is a deficient number, since it is larger than the sum of its proper divisors (2983).

126377 is an equidigital number, since it uses as much as digits as its factorization.

126377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982.

The product of its digits is 1764, while the sum is 26.

The square root of 126377 is about 355.4954289439. The cubic root of 126377 is about 50.1829299167.

Adding to 126377 its reverse (773621), we get a palindrome (899998).

The spelling of 126377 in words is "one hundred twenty-six thousand, three hundred seventy-seven".