213363461 has 4 divisors (see below), whose sum is σ = 213516300. Its totient is φ = 213210624.

The previous prime is 213363391. The next prime is 213363487. The reversal of 213363461 is 164363312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19624900 + 193738561 = 4430^2 + 13919^2 .

It is a cyclic number.

It is not a de Polignac number, because 213363461 - 2¹⁴ = 213347077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213363361) 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, 74306 + ... + 77123.

It is an arithmetic number, because the mean of its divisors is an integer number (53379075).

Almost surely, 2^213363461 is an apocalyptic number.

It is an amenable number.

213363461 is a deficient number, since it is larger than the sum of its proper divisors (152839).

213363461 is a wasteful number, since it uses less digits than its factorization.

213363461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152838.

The product of its digits is 7776, while the sum is 29.

The square root of 213363461 is about 14606.9661805592. The cubic root of 213363461 is about 597.5487595229.

The spelling of 213363461 in words is "two hundred thirteen million, three hundred sixty-three thousand, four hundred sixty-one".