213757142 has 8 divisors (see below), whose sum is σ = 321667632. Its totient is φ = 106534600.

The previous prime is 213757139. The next prime is 213757153. The reversal of 213757142 is 241757312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213757099 and 213757108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171209 + ... + 172452.

It is an arithmetic number, because the mean of its divisors is an integer number (40208454).

Almost surely, 2^213757142 is an apocalyptic number.

213757142 is a deficient number, since it is larger than the sum of its proper divisors (107910490).

213757142 is a wasteful number, since it uses less digits than its factorization.

213757142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343974.

The product of its digits is 11760, while the sum is 32.

The square root of 213757142 is about 14620.4357664195. The cubic root of 213757142 is about 597.9160499297.

The spelling of 213757142 in words is "two hundred thirteen million, seven hundred fifty-seven thousand, one hundred forty-two".