145317278743 has 32 divisors (see below), whose sum is σ = 184911777792. Its totient is φ = 111092428800.

The previous prime is 145317278737. The next prime is 145317278747. The reversal of 145317278743 is 347872713541.

145317278743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145317278743 is a prime.

It is a super-2 number, since 2×145317278743² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145317278747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1768080 + ... + 1848442.

It is an arithmetic number, because the mean of its divisors is an integer number (5778493056).

Almost surely, 2^145317278743 is an apocalyptic number.

145317278743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145317278743 is a deficient number, since it is larger than the sum of its proper divisors (39594499049).

145317278743 is a wasteful number, since it uses less digits than its factorization.

145317278743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81055.

The product of its digits is 3951360, while the sum is 52.

The spelling of 145317278743 in words is "one hundred forty-five billion, three hundred seventeen million, two hundred seventy-eight thousand, seven hundred forty-three".