145256511543 has 96 divisors (see below), whose sum is σ = 242252059392. Its totient is φ = 76309708800.

The previous prime is 145256511487. The next prime is 145256511557. The reversal of 145256511543 is 345115652541.

It is not a de Polignac number, because 145256511543 - 2⁹ = 145256511031 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 145256511495 and 145256511504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145256511563) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69800263 + ... + 69802343.

It is an arithmetic number, because the mean of its divisors is an integer number (2523458952).

Almost surely, 2^145256511543 is an apocalyptic number.

145256511543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145256511543 is a deficient number, since it is larger than the sum of its proper divisors (96995547849).

145256511543 is a wasteful number, since it uses less digits than its factorization.

145256511543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705 (or 2688 counting only the distinct ones).

The product of its digits is 360000, while the sum is 42.

The spelling of 145256511543 in words is "one hundred forty-five billion, two hundred fifty-six million, five hundred eleven thousand, five hundred forty-three".