126212379 has 16 divisors (see below), whose sum is σ = 174765600. Its totient is φ = 80923136.

The previous prime is 126212351. The next prime is 126212399. The reversal of 126212379 is 973212621.

It is a cyclic number.

It is not a de Polignac number, because 126212379 - 2¹² = 126208283 is a prime.

It is a super-2 number, since 2×126212379² = 31859129225679282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126212399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20707 + ... + 26099.

It is an arithmetic number, because the mean of its divisors is an integer number (10922850).

Almost surely, 2^126212379 is an apocalyptic number.

126212379 is a deficient number, since it is larger than the sum of its proper divisors (48553221).

126212379 is a wasteful number, since it uses less digits than its factorization.

126212379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694.

The product of its digits is 9072, while the sum is 33.

The square root of 126212379 is about 11234.4282898597. The cubic root of 126212379 is about 501.6113071340.

The spelling of 126212379 in words is "one hundred twenty-six million, two hundred twelve thousand, three hundred seventy-nine".