145881825140 has 48 divisors (see below), whose sum is σ = 313226065152. Its totient is φ = 57046179456.

The previous prime is 145881825119. The next prime is 145881825209. The reversal of 145881825140 is 41528188541.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742142 + ... + 917898.

It is an arithmetic number, because the mean of its divisors is an integer number (6525543024).

Almost surely, 2^145881825140 is an apocalyptic number.

145881825140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145881825140 is an abundant number, since it is smaller than the sum of its proper divisors (167344240012).

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

145881825140 is a wasteful number, since it uses less digits than its factorization.

145881825140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176696 (or 176694 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 47.

The spelling of 145881825140 in words is "one hundred forty-five billion, eight hundred eighty-one million, eight hundred twenty-five thousand, one hundred forty".