137227212 has 36 divisors (see below), whose sum is σ = 349221600. Its totient is φ = 45433632.

The previous prime is 137227199. The next prime is 137227219. The reversal of 137227212 is 212722731.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (137227219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7428 + ... + 18155.

It is an arithmetic number, because the mean of its divisors is an integer number (9700600).

Almost surely, 2^137227212 is an apocalyptic number.

137227212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137227212 is an abundant number, since it is smaller than the sum of its proper divisors (211994388).

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

137227212 is a wasteful number, since it uses less digits than its factorization.

137227212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25742 (or 25737 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 137227212 is about 11714.4019053471. The cubic root of 137227212 is about 515.7985061491.

Adding to 137227212 its reverse (212722731), we get a palindrome (349949943).

The spelling of 137227212 in words is "one hundred thirty-seven million, two hundred twenty-seven thousand, two hundred twelve".