213233145 has 8 divisors (see below), whose sum is σ = 341173056. Its totient is φ = 113724336.

The previous prime is 213233123. The next prime is 213233203. The reversal of 213233145 is 541332312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213233145 - 2⁵ = 213233113 is a prime.

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, 7107757 + ... + 7107786.

It is an arithmetic number, because the mean of its divisors is an integer number (42646632).

Almost surely, 2^213233145 is an apocalyptic number.

It is an amenable number.

213233145 is a deficient number, since it is larger than the sum of its proper divisors (127939911).

213233145 is a wasteful number, since it uses less digits than its factorization.

213233145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14215551.

The product of its digits is 2160, while the sum is 24.

The square root of 213233145 is about 14602.5047508980. The cubic root of 213233145 is about 597.4270797958.

Adding to 213233145 its reverse (541332312), we get a palindrome (754565457).

The spelling of 213233145 in words is "two hundred thirteen million, two hundred thirty-three thousand, one hundred forty-five".