140981544 has 192 divisors, whose sum is σ = 454559040. Its totient is φ = 38983680.

The previous prime is 140981531. The next prime is 140981569. The reversal of 140981544 is 445189041.

140981544 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 140981499 and 140981508.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 498027 + ... + 498309.

It is an arithmetic number, because the mean of its divisors is an integer number (2367495).

Almost surely, 2^140981544 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 140981544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227279520).

140981544 is an abundant number, since it is smaller than the sum of its proper divisors (313577496).

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

140981544 is a wasteful number, since it uses less digits than its factorization.

140981544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 140981544 is about 11873.5649238129. The cubic root of 140981544 is about 520.4600760570.

The spelling of 140981544 in words is "one hundred forty million, nine hundred eighty-one thousand, five hundred forty-four".