213661342 has 8 divisors (see below), whose sum is σ = 327311136. Its totient is φ = 104557632.

The previous prime is 213661333. The next prime is 213661379. The reversal of 213661342 is 243166312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213661342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136403 + ... + 1136590.

It is an arithmetic number, because the mean of its divisors is an integer number (40913892).

Almost surely, 2^213661342 is an apocalyptic number.

213661342 is a deficient number, since it is larger than the sum of its proper divisors (113649794).

213661342 is a wasteful number, since it uses less digits than its factorization.

213661342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273042.

The product of its digits is 5184, while the sum is 28.

The square root of 213661342 is about 14617.1591631206. The cubic root of 213661342 is about 597.8267134732.

The spelling of 213661342 in words is "two hundred thirteen million, six hundred sixty-one thousand, three hundred forty-two".