213424743 has 24 divisors (see below), whose sum is σ = 332916480. Its totient is φ = 121260720.

The previous prime is 213424711. The next prime is 213424753. The reversal of 213424743 is 347424312.

It is not a de Polignac number, because 213424743 - 2⁵ = 213424711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213424743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213424703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22258 + ... + 30368.

It is an arithmetic number, because the mean of its divisors is an integer number (13871520).

Almost surely, 2^213424743 is an apocalyptic number.

213424743 is a deficient number, since it is larger than the sum of its proper divisors (119491737).

213424743 is a wasteful number, since it uses less digits than its factorization.

213424743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8307 (or 8300 counting only the distinct ones).

The product of its digits is 16128, while the sum is 30.

The square root of 213424743 is about 14609.0637277000. The cubic root of 213424743 is about 597.6059631284.

It can be divided in two parts, 21342 and 4743, that multiplied together give a triangular number (101225106 = T₁₄₂₂₈).

The spelling of 213424743 in words is "two hundred thirteen million, four hundred twenty-four thousand, seven hundred forty-three".