145144240013530 has 16 divisors (see below), whose sum is σ = 270268584853320. Its totient is φ = 56055706487872.

The previous prime is 145144240013489. The next prime is 145144240013537. The reversal of 145144240013530 is 35310042441541.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 139719752136721 + 5424487876809 = 11820311^2 + 2329053^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145144240013530.

It is not an unprimeable number, because it can be changed into a prime (145144240013537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250248689389 + ... + 250248689968.

Almost surely, 2^{145144240013530} is an apocalyptic number.

145144240013530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145144240013530 is a deficient number, since it is larger than the sum of its proper divisors (125124344839790).

145144240013530 is a wasteful number, since it uses less digits than its factorization.

145144240013530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500497379393.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 145144240013530 in words is "one hundred forty-five trillion, one hundred forty-four billion, two hundred forty million, thirteen thousand, five hundred thirty".