213024142 has 4 divisors (see below), whose sum is σ = 319536216. Its totient is φ = 106512070.

The previous prime is 213024121. The next prime is 213024179. The reversal of 213024142 is 241420312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53256034 + ... + 53256037.

It is an arithmetic number, because the mean of its divisors is an integer number (79884054).

Almost surely, 2^213024142 is an apocalyptic number.

213024142 is a deficient number, since it is larger than the sum of its proper divisors (106512074).

213024142 is a wasteful number, since it uses less digits than its factorization.

213024142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106512073.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 213024142 is about 14595.3465871832. The cubic root of 213024142 is about 597.2318242382.

Adding to 213024142 its reverse (241420312), we get a palindrome (454444454).

The spelling of 213024142 in words is "two hundred thirteen million, twenty-four thousand, one hundred forty-two".