213142526 has 4 divisors (see below), whose sum is σ = 319713792. Its totient is φ = 106571262.

The previous prime is 213142519. The next prime is 213142537. The reversal of 213142526 is 625241312.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213142495 and 213142504.

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 as a sum of consecutive naturals, namely, 53285630 + ... + 53285633.

It is an arithmetic number, because the mean of its divisors is an integer number (79928448).

Almost surely, 2^213142526 is an apocalyptic number.

213142526 is a deficient number, since it is larger than the sum of its proper divisors (106571266).

213142526 is a wasteful number, since it uses less digits than its factorization.

213142526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106571265.

The product of its digits is 2880, while the sum is 26.

The square root of 213142526 is about 14599.4015630779. The cubic root of 213142526 is about 597.3424370518.

Adding to 213142526 its reverse (625241312), we get a palindrome (838383838).

The spelling of 213142526 in words is "two hundred thirteen million, one hundred forty-two thousand, five hundred twenty-six".