140050021513 has 4 divisors (see below), whose sum is σ = 140050770048. Its totient is φ = 140049272980.

The previous prime is 140050021511. The next prime is 140050021567. The reversal of 140050021513 is 315120050041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 315120050041 = 34457 ⋅9145313.

It is a cyclic number.

It is not a de Polignac number, because 140050021513 - 2¹ = 140050021511 is a prime.

It is a super-2 number, since 2×140050021513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140050021511) 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 3 ways as a sum of consecutive naturals, for example, 179520 + ... + 558862.

It is an arithmetic number, because the mean of its divisors is an integer number (35012692512).

Almost surely, 2^140050021513 is an apocalyptic number.

It is an amenable number.

140050021513 is a deficient number, since it is larger than the sum of its proper divisors (748535).

140050021513 is an equidigital number, since it uses as much as digits as its factorization.

140050021513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748534.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 140050021513 its reverse (315120050041), we get a palindrome (455170071554).

The spelling of 140050021513 in words is "one hundred forty billion, fifty million, twenty-one thousand, five hundred thirteen".