140521519044 has 27 divisors (see below), whose sum is σ = 355212858637. Its totient is φ = 46839756624.

The previous prime is 140521519013. The next prime is 140521519051. The reversal of 140521519044 is 440915125041.

The square root of 140521519044 is 374862.

It is a perfect power (a square), and thus also a powerful number.

140521519044 is a `hidden beast` number, since 1 + 4 + 0 + 521 + 5 + 1 + 90 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25405172100 + 115116346944 = 159390^2 + 339288^2 .

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2217934 + ... + 2280410.

Almost surely, 2^140521519044 is an apocalyptic number.

140521519044 is the 374862-nd square number.

It is an amenable number.

140521519044 is an abundant number, since it is smaller than the sum of its proper divisors (214691339593).

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

140521519044 is an frugal number, since it uses more digits than its factorization.

140521519044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124964 (or 62482 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Multiplying 140521519044 by its sum of digits (36), we get a square (5058774685584 = 2249172²).

140521519044 divided by its sum of digits (36) gives a square (3903375529 = 62477²).

The spelling of 140521519044 in words is "one hundred forty billion, five hundred twenty-one million, five hundred nineteen thousand, forty-four".