145444015140 has 96 divisors (see below), whose sum is σ = 409491573120. Its totient is φ = 38571442176.

The previous prime is 145444015133. The next prime is 145444015163. The reversal of 145444015140 is 41510444541.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9907726 + ... + 9922394.

It is an arithmetic number, because the mean of its divisors is an integer number (4265537220).

Almost surely, 2^145444015140 is an apocalyptic number.

145444015140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145444015140 is an abundant number, since it is smaller than the sum of its proper divisors (264047557980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145444015140 is a wasteful number, since it uses less digits than its factorization.

145444015140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15581 (or 15579 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

Adding to 145444015140 its reverse (41510444541), we get a palindrome (186954459681).

The spelling of 145444015140 in words is "one hundred forty-five billion, four hundred forty-four million, fifteen thousand, one hundred forty".