140441554521 has 12 divisors (see below), whose sum is σ = 214792965972. Its totient is φ = 88120190976.

The previous prime is 140441554511. The next prime is 140441554523. The reversal of 140441554521 is 125455144041.

140441554521 is a `hidden beast` number, since 1 + 40 + 4 + 41 + 5 + 54 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 44115121296 + 96326433225 = 210036^2 + 310365^2 .

It is not a de Polignac number, because 140441554521 - 2¹⁷ = 140441423449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140441554523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458959176 + ... + 458959481.

It is an arithmetic number, because the mean of its divisors is an integer number (17899413831).

Almost surely, 2^140441554521 is an apocalyptic number.

It is an amenable number.

140441554521 is a deficient number, since it is larger than the sum of its proper divisors (74351411451).

140441554521 is a wasteful number, since it uses less digits than its factorization.

140441554521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917918680 (or 917918677 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 140441554521 its reverse (125455144041), we get a palindrome (265896698562).

The spelling of 140441554521 in words is "one hundred forty billion, four hundred forty-one million, five hundred fifty-four thousand, five hundred twenty-one".