145881715756 has 24 divisors (see below), whose sum is σ = 291839371040. Its totient is φ = 62504462592.

The previous prime is 145881715753. The next prime is 145881715781. The reversal of 145881715756 is 657517188541.

It is a happy number.

145881715756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145881715756.

It is not an unprimeable number, because it can be changed into a prime (145881715753) 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 7 ways as a sum of consecutive naturals, for example, 568221 + ... + 783988.

Almost surely, 2^145881715756 is an apocalyptic number.

It is an amenable number.

145881715756 is an abundant number, since it is smaller than the sum of its proper divisors (145957655284).

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

145881715756 is a wasteful number, since it uses less digits than its factorization.

145881715756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356073 (or 1356071 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 58.

The spelling of 145881715756 in words is "one hundred forty-five billion, eight hundred eighty-one million, seven hundred fifteen thousand, seven hundred fifty-six".