213401033 has 4 divisors (see below), whose sum is σ = 214473600. Its totient is φ = 212328468.

The previous prime is 213401011. The next prime is 213401039. The reversal of 213401033 is 330104312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213401033 - 2²⁶ = 146292169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213401039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535985 + ... + 536382.

It is an arithmetic number, because the mean of its divisors is an integer number (53618400).

Almost surely, 2^213401033 is an apocalyptic number.

It is an amenable number.

213401033 is a deficient number, since it is larger than the sum of its proper divisors (1072567).

213401033 is a wasteful number, since it uses less digits than its factorization.

213401033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072566.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213401033 is about 14608.2522226309. The cubic root of 213401033 is about 597.5838323577.

Adding to 213401033 its reverse (330104312), we get a palindrome (543505345).

The spelling of 213401033 in words is "two hundred thirteen million, four hundred one thousand, thirty-three".