13212126 has 16 divisors (see below), whose sum is σ = 29360400. Its totient is φ = 4404024.

The previous prime is 13212109. The next prime is 13212131. The reversal of 13212126 is 62121231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13212099 and 13212108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122281 + ... + 122388.

It is an arithmetic number, because the mean of its divisors is an integer number (1835025).

Almost surely, 2^13212126 is an apocalyptic number.

13212126 is an abundant number, since it is smaller than the sum of its proper divisors (16148274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13212126 is a wasteful number, since it uses less digits than its factorization.

13212126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244680 (or 244674 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 13212126 is about 3634.8488276681. The cubic root of 13212126 is about 236.4054960200.

Adding to 13212126 its reverse (62121231), we get a palindrome (75333357).

The spelling of 13212126 in words is "thirteen million, two hundred twelve thousand, one hundred twenty-six".