213235077 has 16 divisors (see below), whose sum is σ = 315247680. Its totient is φ = 127113600.

The previous prime is 213235073. The next prime is 213235109. The reversal of 213235077 is 770532312.

It is not a de Polignac number, because 213235077 - 2² = 213235073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213235073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50952 + ... + 54977.

It is an arithmetic number, because the mean of its divisors is an integer number (19702980).

Almost surely, 2^213235077 is an apocalyptic number.

It is an amenable number.

213235077 is a deficient number, since it is larger than the sum of its proper divisors (102012603).

213235077 is a wasteful number, since it uses less digits than its factorization.

213235077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106004.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 213235077 is about 14602.5709037827. The cubic root of 213235077 is about 597.4288841207.

Adding to 213235077 its reverse (770532312), we get a palindrome (983767389).

The spelling of 213235077 in words is "two hundred thirteen million, two hundred thirty-five thousand, seventy-seven".