213733402 has 4 divisors (see below), whose sum is σ = 320600106. Its totient is φ = 106866700.

The previous prime is 213733391. The next prime is 213733409. The reversal of 213733402 is 204337312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 208484721 + 5248681 = 14439^2 + 2291^2 .

It is not an unprimeable number, because it can be changed into a prime (213733409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53433349 + ... + 53433352.

Almost surely, 2^213733402 is an apocalyptic number.

213733402 is a deficient number, since it is larger than the sum of its proper divisors (106866704).

213733402 is a wasteful number, since it uses less digits than its factorization.

213733402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106866703.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 213733402 is about 14619.6238665706. The cubic root of 213733402 is about 597.8939141351.

The spelling of 213733402 in words is "two hundred thirteen million, seven hundred thirty-three thousand, four hundred two".