140445510021 has 24 divisors (see below), whose sum is σ = 203752766880. Its totient is φ = 93221498016.

The previous prime is 140445510019. The next prime is 140445510053. The reversal of 140445510021 is 120015544041.

140445510021 is a `hidden beast` number, since 140 + 4 + 4 + 5 + 510 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 140445510021 - 2¹ = 140445510019 is a prime.

It is a super-2 number, since 2×140445510021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140445510001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3107830 + ... + 3152696.

It is an arithmetic number, because the mean of its divisors is an integer number (8489698620).

Almost surely, 2^140445510021 is an apocalyptic number.

It is an amenable number.

140445510021 is a deficient number, since it is larger than the sum of its proper divisors (63307256859).

140445510021 is a wasteful number, since it uses less digits than its factorization.

140445510021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46385 (or 46382 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 140445510021 in words is "one hundred forty billion, four hundred forty-five million, five hundred ten thousand, twenty-one".