240564197 has 4 divisors (see below), whose sum is σ = 240617580. Its totient is φ = 240510816.

The previous prime is 240564167. The next prime is 240564209. The reversal of 240564197 is 791465042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67141636 + 173422561 = 8194^2 + 13169^2 .

It is a cyclic number.

It is not a de Polignac number, because 240564197 - 2⁶ = 240564133 is a prime.

It is a super-2 number, since 2×240564197² = 115742265756509618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240564197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240564167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19238 + ... + 29175.

It is an arithmetic number, because the mean of its divisors is an integer number (60154395).

Almost surely, 2^240564197 is an apocalyptic number.

It is an amenable number.

240564197 is a deficient number, since it is larger than the sum of its proper divisors (53383).

240564197 is an equidigital number, since it uses as much as digits as its factorization.

240564197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53382.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 240564197 is about 15510.1320755176. The cubic root of 240564197 is about 621.9330898894.

The spelling of 240564197 in words is "two hundred forty million, five hundred sixty-four thousand, one hundred ninety-seven".