213748755 has 16 divisors (see below), whose sum is σ = 373089024. Its totient is φ = 103635680.

The previous prime is 213748753. The next prime is 213748771. The reversal of 213748755 is 557847312.

213748755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213748755 - 2¹ = 213748753 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (213748753) 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, 647559 + ... + 647888.

It is an arithmetic number, because the mean of its divisors is an integer number (23318064).

Almost surely, 2^213748755 is an apocalyptic number.

213748755 is a deficient number, since it is larger than the sum of its proper divisors (159340269).

213748755 is a wasteful number, since it uses less digits than its factorization.

213748755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295466.

The product of its digits is 235200, while the sum is 42.

The square root of 213748755 is about 14620.1489390498. The cubic root of 213748755 is about 597.9082298596.

The spelling of 213748755 in words is "two hundred thirteen million, seven hundred forty-eight thousand, seven hundred fifty-five".