240102743 has 4 divisors (see below), whose sum is σ = 245211360. Its totient is φ = 234994128.

The previous prime is 240102703. The next prime is 240102761. The reversal of 240102743 is 347201042.

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

It is a cyclic number.

It is not a de Polignac number, because 240102743 - 2¹² = 240098647 is a prime.

It is a super-2 number, since 2×240102743² = 115298654392248098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240102703) 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, 2554238 + ... + 2554331.

It is an arithmetic number, because the mean of its divisors is an integer number (61302840).

Almost surely, 2^240102743 is an apocalyptic number.

240102743 is a deficient number, since it is larger than the sum of its proper divisors (5108617).

240102743 is an equidigital number, since it uses as much as digits as its factorization.

240102743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108616.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 240102743 is about 15495.2490460786. The cubic root of 240102743 is about 621.5351680919.

Adding to 240102743 its reverse (347201042), we get a palindrome (587303785).

The spelling of 240102743 in words is "two hundred forty million, one hundred two thousand, seven hundred forty-three".