145256544245 has 4 divisors (see below), whose sum is σ = 174307853100. Its totient is φ = 116205235392.

The previous prime is 145256544211. The next prime is 145256544247. The reversal of 145256544245 is 542445652541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36774582289 + 108481961956 = 191767^2 + 329366^2 .

It is a cyclic number.

It is not a de Polignac number, because 145256544245 - 2¹⁶ = 145256478709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145256544245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145256544247) 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, 14525654420 + ... + 14525654429.

It is an arithmetic number, because the mean of its divisors is an integer number (43576963275).

Almost surely, 2^145256544245 is an apocalyptic number.

It is an amenable number.

145256544245 is a deficient number, since it is larger than the sum of its proper divisors (29051308855).

145256544245 is an equidigital number, since it uses as much as digits as its factorization.

145256544245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29051308854.

The product of its digits is 3840000, while the sum is 47.

The spelling of 145256544245 in words is "one hundred forty-five billion, two hundred fifty-six million, five hundred forty-four thousand, two hundred forty-five".