213011735 has 4 divisors (see below), whose sum is σ = 255614088. Its totient is φ = 170409384.

The previous prime is 213011731. The next prime is 213011749. The reversal of 213011735 is 537110312.

213011735 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213011735 - 2² = 213011731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213011735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213011731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21301169 + ... + 21301178.

It is an arithmetic number, because the mean of its divisors is an integer number (63903522).

Almost surely, 2^213011735 is an apocalyptic number.

213011735 is a deficient number, since it is larger than the sum of its proper divisors (42602353).

213011735 is an equidigital number, since it uses as much as digits as its factorization.

213011735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42602352.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 213011735 is about 14594.9215482647. The cubic root of 213011735 is about 597.2202293097.

The spelling of 213011735 in words is "two hundred thirteen million, eleven thousand, seven hundred thirty-five".