126215 has 4 divisors (see below), whose sum is σ = 151464. Its totient is φ = 100968.

The previous prime is 126211. The next prime is 126223. The reversal of 126215 is 512621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126215 - 2² = 126211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 126193 and 126202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12617 + ... + 12626.

It is an arithmetic number, because the mean of its divisors is an integer number (37866).

2¹²⁶²¹⁵ is an apocalyptic number.

126215 is a deficient number, since it is larger than the sum of its proper divisors (25249).

126215 is an equidigital number, since it uses as much as digits as its factorization.

126215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25248.

The product of its digits is 120, while the sum is 17.

The square root of 126215 is about 355.2675048467. The cubic root of 126215 is about 50.1614779361.

Adding to 126215 its reverse (512621), we get a palindrome (638836).

The spelling of 126215 in words is "one hundred twenty-six thousand, two hundred fifteen".