140230603521 has 6 divisors (see below), whose sum is σ = 202555316210. Its totient is φ = 93487069008.

The previous prime is 140230603511. The next prime is 140230603529. The reversal of 140230603521 is 125306032041.

140230603521 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 3 + 0 + 603 + 52 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 96335744400 + 43894859121 = 310380^2 + 209511^2 .

It is not a de Polignac number, because 140230603521 - 2⁵ = 140230603489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140230603529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7790589076 + ... + 7790589093.

Almost surely, 2^140230603521 is an apocalyptic number.

It is an amenable number.

140230603521 is a deficient number, since it is larger than the sum of its proper divisors (62324712689).

140230603521 is a wasteful number, since it uses less digits than its factorization.

140230603521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15581178175 (or 15581178172 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 140230603521 its reverse (125306032041), we get a palindrome (265536635562).

The spelling of 140230603521 in words is "one hundred forty billion, two hundred thirty million, six hundred three thousand, five hundred twenty-one".