240513223 has 2 divisors, whose sum is σ = 240513224. Its totient is φ = 240513222.

The previous prime is 240513199. The next prime is 240513307. The reversal of 240513223 is 322315042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240513223 is a prime.

It is a super-2 number, since 2×240513223² = 115693220875695458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240513194 and 240513203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240516223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120256611 + 120256612.

It is an arithmetic number, because the mean of its divisors is an integer number (120256612).

Almost surely, 2^240513223 is an apocalyptic number.

240513223 is a deficient number, since it is larger than the sum of its proper divisors (1).

240513223 is an equidigital number, since it uses as much as digits as its factorization.

240513223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 240513223 is about 15508.4887400417. The cubic root of 240513223 is about 621.8891589177.

Adding to 240513223 its reverse (322315042), we get a palindrome (562828265).

It can be divided in two parts, 2 and 40513223, that added together give a square (40513225 = 6365²).

The spelling of 240513223 in words is "two hundred forty million, five hundred thirteen thousand, two hundred twenty-three".