213277445 has 8 divisors (see below), whose sum is σ = 256043040. Its totient is φ = 170548560.

The previous prime is 213277439. The next prime is 213277447. The reversal of 213277445 is 544772312.

213277445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-213277445 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213277447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5846 + ... + 21464.

It is an arithmetic number, because the mean of its divisors is an integer number (32005380).

Almost surely, 2^213277445 is an apocalyptic number.

It is an amenable number.

213277445 is a deficient number, since it is larger than the sum of its proper divisors (42765595).

213277445 is a wasteful number, since it uses less digits than its factorization.

213277445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18355.

The product of its digits is 47040, while the sum is 35.

The square root of 213277445 is about 14604.0215351800. The cubic root of 213277445 is about 597.4684495166.

The spelling of 213277445 in words is "two hundred thirteen million, two hundred seventy-seven thousand, four hundred forty-five".