213059247 has 16 divisors (see below), whose sum is σ = 291755520. Its totient is φ = 138219200.

The previous prime is 213059237. The next prime is 213059251. The reversal of 213059247 is 742950312.

It is not a de Polignac number, because 213059247 - 2²⁰ = 212010671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213059237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51004 + ... + 55022.

It is an arithmetic number, because the mean of its divisors is an integer number (18234720).

Almost surely, 2^213059247 is an apocalyptic number.

213059247 is a deficient number, since it is larger than the sum of its proper divisors (78696273).

213059247 is a wasteful number, since it uses less digits than its factorization.

213059247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 213059247 is about 14596.5491469731. The cubic root of 213059247 is about 597.2646290828.

The spelling of 213059247 in words is "two hundred thirteen million, fifty-nine thousand, two hundred forty-seven".