126877213 has 8 divisors (see below), whose sum is σ = 129219840. Its totient is φ = 124550160.

The previous prime is 126877211. The next prime is 126877217. The reversal of 126877213 is 312778621.

It is the 4599-th star number.

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

It is a cyclic number.

It is not a de Polignac number, because 126877213 - 2¹ = 126877211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126877211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13231 + ... + 20707.

It is an arithmetic number, because the mean of its divisors is an integer number (16152480).

Almost surely, 2^126877213 is an apocalyptic number.

It is an amenable number.

126877213 is a deficient number, since it is larger than the sum of its proper divisors (2342627).

126877213 is an equidigital number, since it uses as much as digits as its factorization.

126877213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787.

The product of its digits is 28224, while the sum is 37.

The square root of 126877213 is about 11263.9785599938. The cubic root of 126877213 is about 502.4905246433.

It can be divided in two parts, 12687 and 7213, that added together give a triangular number (19900 = T₁₉₉).

The spelling of 126877213 in words is "one hundred twenty-six million, eight hundred seventy-seven thousand, two hundred thirteen".