213455043 has 24 divisors (see below), whose sum is σ = 331826976. Its totient is φ = 131731200.

The previous prime is 213455029. The next prime is 213455069. The reversal of 213455043 is 340554312.

It is not a de Polignac number, because 213455043 - 2¹⁰ = 213454019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213454998 and 213455016.

It is not an unprimeable number, because it can be changed into a prime (213455023) 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, 2103 + ... + 20768.

It is an arithmetic number, because the mean of its divisors is an integer number (13826124).

Almost surely, 2^213455043 is an apocalyptic number.

213455043 is a deficient number, since it is larger than the sum of its proper divisors (118371933).

213455043 is a wasteful number, since it uses less digits than its factorization.

213455043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22955 (or 22952 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 213455043 is about 14610.1007183387. The cubic root of 213455043 is about 597.6342425796.

The spelling of 213455043 in words is "two hundred thirteen million, four hundred fifty-five thousand, forty-three".