126377977 has 8 divisors (see below), whose sum is σ = 141593472. Its totient is φ = 111783600.

The previous prime is 126377947. The next prime is 126377981. The reversal of 126377977 is 779773621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126377977 is a prime.

It is a super-2 number, since 2×126377977² = 31942786141225058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126377977.

It is not an unprimeable number, because it can be changed into a prime (126377947) 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, 154849 + ... + 155662.

It is an arithmetic number, because the mean of its divisors is an integer number (17699184).

Almost surely, 2^126377977 is an apocalyptic number.

It is an amenable number.

126377977 is a deficient number, since it is larger than the sum of its proper divisors (15215495).

126377977 is a wasteful number, since it uses less digits than its factorization.

126377977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310559.

The product of its digits is 777924, while the sum is 49.

The square root of 126377977 is about 11241.7959864072. The cubic root of 126377977 is about 501.8305923507.

The spelling of 126377977 in words is "one hundred twenty-six million, three hundred seventy-seven thousand, nine hundred seventy-seven".