126213017 has 8 divisors (see below), whose sum is σ = 149217600. Its totient is φ = 104451984.

The previous prime is 126213013. The next prime is 126213097. The reversal of 126213017 is 710312621.

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

It is not a de Polignac number, because 126213017 - 2² = 126213013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126212983 and 126213001.

It is not an unprimeable number, because it can be changed into a prime (126213013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310667 + ... + 311072.

It is an arithmetic number, because the mean of its divisors is an integer number (18652200).

Almost surely, 2^126213017 is an apocalyptic number.

It is an amenable number.

126213017 is a deficient number, since it is larger than the sum of its proper divisors (23004583).

126213017 is an equidigital number, since it uses as much as digits as its factorization.

126213017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621775.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 126213017 is about 11234.4566846822. The cubic root of 126213017 is about 501.6121523429.

Adding to 126213017 its reverse (710312621), we get a palindrome (836525638).

The spelling of 126213017 in words is "one hundred twenty-six million, two hundred thirteen thousand, seventeen".