213026147 has 4 divisors (see below), whose sum is σ = 214107696. Its totient is φ = 211944600.

The previous prime is 213026123. The next prime is 213026159. The reversal of 213026147 is 741620312.

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

It is a cyclic number.

It is not a de Polignac number, because 213026147 - 2¹⁸ = 212764003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213026747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540479 + ... + 540872.

It is an arithmetic number, because the mean of its divisors is an integer number (53526924).

Almost surely, 2^213026147 is an apocalyptic number.

213026147 is a deficient number, since it is larger than the sum of its proper divisors (1081549).

213026147 is a wasteful number, since it uses less digits than its factorization.

213026147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081548.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 213026147 is about 14595.4152732973. The cubic root of 213026147 is about 597.2336979633.

Adding to 213026147 its reverse (741620312), we get a palindrome (954646459).

The spelling of 213026147 in words is "two hundred thirteen million, twenty-six thousand, one hundred forty-seven".