213033475 has 12 divisors (see below), whose sum is σ = 275647536. Its totient is φ = 163016480.

The previous prime is 213033473. The next prime is 213033479. The reversal of 213033475 is 574330312.

It is not a de Polignac number, because 213033475 - 2¹ = 213033473 is a prime.

It is a super-2 number, since 2×213033475² = 90766522941151250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213033473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184672 + ... + 185821.

It is an arithmetic number, because the mean of its divisors is an integer number (22970628).

Almost surely, 2^213033475 is an apocalyptic number.

213033475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213033475 is a deficient number, since it is larger than the sum of its proper divisors (62614061).

213033475 is a wasteful number, since it uses less digits than its factorization.

213033475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370526 (or 370521 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 213033475 is about 14595.6663088740. Note that the first 3 decimals coincide. The cubic root of 213033475 is about 597.2405460716.

Adding to 213033475 its reverse (574330312), we get a palindrome (787363787).

The spelling of 213033475 in words is "two hundred thirteen million, thirty-three thousand, four hundred seventy-five".