145081991392 has 96 divisors (see below), whose sum is σ = 313723730880. Its totient is φ = 65630822400.

The previous prime is 145081991371. The next prime is 145081991449. The reversal of 145081991392 is 293199180541.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 26476909 + ... + 26482387.

It is an arithmetic number, because the mean of its divisors is an integer number (3267955530).

Almost surely, 2^145081991392 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 145081991392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156861865440).

145081991392 is an abundant number, since it is smaller than the sum of its proper divisors (168641739488).

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

145081991392 is a wasteful number, since it uses less digits than its factorization.

145081991392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756 (or 6748 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 52.

The spelling of 145081991392 in words is "one hundred forty-five billion, eighty-one million, nine hundred ninety-one thousand, three hundred ninety-two".