240252105143455 has 4 divisors (see below), whose sum is σ = 288302526172152. Its totient is φ = 192201684114760.

The previous prime is 240252105143423. The next prime is 240252105143459. The reversal of 240252105143455 is 554341501252042.

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

It is not a de Polignac number, because 240252105143455 - 2⁵ = 240252105143423 is a prime.

It is a super-2 number, since 2×240252105143455² (a number of 30 digits) 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 (240252105143459) 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, 24025210514341 + ... + 24025210514350.

It is an arithmetic number, because the mean of its divisors is an integer number (72075631543038).

Almost surely, 2^{240252105143455} is an apocalyptic number.

240252105143455 is a deficient number, since it is larger than the sum of its proper divisors (48050421028697).

240252105143455 is an equidigital number, since it uses as much as digits as its factorization.

240252105143455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48050421028696.

The product of its (nonzero) digits is 960000, while the sum is 43.

Adding to 240252105143455 its reverse (554341501252042), we get a palindrome (794593606395497).

The spelling of 240252105143455 in words is "two hundred forty trillion, two hundred fifty-two billion, one hundred five million, one hundred forty-three thousand, four hundred fifty-five".