213115024 has 10 divisors (see below), whose sum is σ = 412910390. Its totient is φ = 106557504.

The previous prime is 213115013. The next prime is 213115031. The reversal of 213115024 is 420511312.

It can be written as a sum of positive squares in only one way, i.e., 192321424 + 20793600 = 13868^2 + 4560^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213114992 and 213115010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6659829 + ... + 6659860.

It is an arithmetic number, because the mean of its divisors is an integer number (41291039).

Almost surely, 2^213115024 is an apocalyptic number.

It is an amenable number.

213115024 is a deficient number, since it is larger than the sum of its proper divisors (199795366).

213115024 is a wasteful number, since it uses less digits than its factorization.

213115024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13319697 (or 13319691 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 213115024 is about 14598.4596447707. The cubic root of 213115024 is about 597.3167440431.

Adding to 213115024 its reverse (420511312), we get a palindrome (633626336).

It can be divided in two parts, 21311 and 5024, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 213115024 in words is "two hundred thirteen million, one hundred fifteen thousand, twenty-four".