213423142 has 8 divisors (see below), whose sum is σ = 320518800. Its totient is φ = 106583544.

The previous prime is 213423139. The next prime is 213423167. The reversal of 213423142 is 241324312.

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

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, 61917 + ... + 65272.

It is an arithmetic number, because the mean of its divisors is an integer number (40064850).

Almost surely, 2^213423142 is an apocalyptic number.

213423142 is a deficient number, since it is larger than the sum of its proper divisors (107095658).

213423142 is a wasteful number, since it uses less digits than its factorization.

213423142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128030.

The product of its digits is 1152, while the sum is 22.

The square root of 213423142 is about 14609.0089328469. The cubic root of 213423142 is about 597.6044688162.

Adding to 213423142 its reverse (241324312), we get a palindrome (454747454).

The spelling of 213423142 in words is "two hundred thirteen million, four hundred twenty-three thousand, one hundred forty-two".