145881125572 has 96 divisors (see below), whose sum is σ = 321014131200. Its totient is φ = 57639899520.

The previous prime is 145881125561. The next prime is 145881125581. The reversal of 145881125572 is 275521188541.

It is a Harshad number since it is a multiple of its sum of digits (49).

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, 15815922 + ... + 15825142.

It is an arithmetic number, because the mean of its divisors is an integer number (3343897200).

Almost surely, 2^145881125572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145881125572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160507065600).

145881125572 is an abundant number, since it is smaller than the sum of its proper divisors (175133005628).

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

145881125572 is a wasteful number, since it uses less digits than its factorization.

145881125572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146 (or 10130 counting only the distinct ones).

The product of its digits is 896000, while the sum is 49.

The spelling of 145881125572 in words is "one hundred forty-five billion, eight hundred eighty-one million, one hundred twenty-five thousand, five hundred seventy-two".