213226156 has 24 divisors (see below), whose sum is σ = 438382224. Its totient is φ = 89465280.

The previous prime is 213226147. The next prime is 213226157. The reversal of 213226156 is 651622312.

213226156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×213226156³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (213226157) 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, 185815 + ... + 186958.

It is an arithmetic number, because the mean of its divisors is an integer number (18265926).

Almost surely, 2^213226156 is an apocalyptic number.

213226156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

213226156 is an abundant number, since it is smaller than the sum of its proper divisors (225156068).

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

213226156 is a wasteful number, since it uses less digits than its factorization.

213226156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372801 (or 372799 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 213226156 is about 14602.2654406773. The cubic root of 213226156 is about 597.4205525687.

Adding to 213226156 its reverse (651622312), we get a palindrome (864848468).

The spelling of 213226156 in words is "two hundred thirteen million, two hundred twenty-six thousand, one hundred fifty-six".