213455112 has 48 divisors (see below), whose sum is σ = 577855440. Its totient is φ = 65677248.

The previous prime is 213455093. The next prime is 213455113. The reversal of 213455112 is 211554312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (213455113) 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, 22258 + ... + 30369.

It is an arithmetic number, because the mean of its divisors is an integer number (12038655).

Almost surely, 2^213455112 is an apocalyptic number.

It is an amenable number.

213455112 is an abundant number, since it is smaller than the sum of its proper divisors (364400328).

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

213455112 is a wasteful number, since it uses less digits than its factorization.

213455112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52662 (or 52645 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 213455112 is about 14610.1030797185. The cubic root of 213455112 is about 597.6343069753.

The spelling of 213455112 in words is "two hundred thirteen million, four hundred fifty-five thousand, one hundred twelve".