218970573 has 16 divisors (see below), whose sum is σ = 308491200. Its totient is φ = 137773440.

The previous prime is 218970571. The next prime is 218970589. The reversal of 218970573 is 375079812.

It is not a de Polignac number, because 218970573 - 2¹ = 218970571 is a prime.

It is a super-2 number, since 2×218970573² = 95896223679896658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218970571) 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, 8193 + ... + 22473.

It is an arithmetic number, because the mean of its divisors is an integer number (19280700).

Almost surely, 2^218970573 is an apocalyptic number.

It is an amenable number.

218970573 is a deficient number, since it is larger than the sum of its proper divisors (89520627).

218970573 is a wasteful number, since it uses less digits than its factorization.

218970573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14572.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 218970573 is about 14797.6543073556. The cubic root of 218970573 is about 602.7380169881.

The spelling of 218970573 in words is "two hundred eighteen million, nine hundred seventy thousand, five hundred seventy-three".