213138759 has 16 divisors (see below), whose sum is σ = 292287488. Its totient is φ = 138052512.

The previous prime is 213138643. The next prime is 213138803. The reversal of 213138759 is 957831312.

It is not a de Polignac number, because 213138759 - 2¹¹ = 213136711 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 (213138059) 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, 146574 + ... + 148020.

It is an arithmetic number, because the mean of its divisors is an integer number (18267968).

Almost surely, 2^213138759 is an apocalyptic number.

213138759 is a deficient number, since it is larger than the sum of its proper divisors (79148729).

213138759 is a wasteful number, since it uses less digits than its factorization.

213138759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814.

The product of its digits is 45360, while the sum is 39.

The square root of 213138759 is about 14599.2725503704. The cubic root of 213138759 is about 597.3389179633.

The spelling of 213138759 in words is "two hundred thirteen million, one hundred thirty-eight thousand, seven hundred fifty-nine".