142440155252443 has 4 divisors (see below), whose sum is σ = 142464803148040. Its totient is φ = 142415507356848.

The previous prime is 142440155252431. The next prime is 142440155252449. The reversal of 142440155252443 is 344252551044241.

142440155252443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142440155252443 - 2²⁹ = 142439618381531 is a prime.

It is a super-2 number, since 2×142440155252443² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142440155252393 and 142440155252402.

It is not an unprimeable number, because it can be changed into a prime (142440155252449) 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, 12323939130 + ... + 12323950687.

It is an arithmetic number, because the mean of its divisors is an integer number (35616200787010).

Almost surely, 2^{142440155252443} is an apocalyptic number.

142440155252443 is a deficient number, since it is larger than the sum of its proper divisors (24647895597).

142440155252443 is an equidigital number, since it uses as much as digits as its factorization.

142440155252443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24647895596.

The product of its (nonzero) digits is 3072000, while the sum is 46.

The spelling of 142440155252443 in words is "one hundred forty-two trillion, four hundred forty billion, one hundred fifty-five million, two hundred fifty-two thousand, four hundred forty-three".