213437043 has 12 divisors (see below), whose sum is σ = 313524120. Its totient is φ = 139879296.

The previous prime is 213437039. The next prime is 213437099. The reversal of 213437043 is 340734312.

It is not a de Polignac number, because 213437043 - 2² = 213437039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213436998 and 213437016.

It is not an unprimeable number, because it can be changed into a prime (213437743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200446 + ... + 201507.

It is an arithmetic number, because the mean of its divisors is an integer number (26127010).

Almost surely, 2^213437043 is an apocalyptic number.

213437043 is a deficient number, since it is larger than the sum of its proper divisors (100087077).

213437043 is a wasteful number, since it uses less digits than its factorization.

213437043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402018 (or 402015 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 213437043 is about 14609.4846931711. The cubic root of 213437043 is about 597.6174432283.

The spelling of 213437043 in words is "two hundred thirteen million, four hundred thirty-seven thousand, forty-three".