142451021613 has 16 divisors (see below), whose sum is σ = 191818077696. Its totient is φ = 94026659760.

The previous prime is 142451021579. The next prime is 142451021693. The reversal of 142451021613 is 316120154241.

142451021613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142451021613 - 2¹⁰ = 142451020589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142451021693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447898 + ... + 696788.

It is an arithmetic number, because the mean of its divisors is an integer number (11988629856).

Almost surely, 2^142451021613 is an apocalyptic number.

It is an amenable number.

142451021613 is a deficient number, since it is larger than the sum of its proper divisors (49367056083).

142451021613 is a wasteful number, since it uses less digits than its factorization.

142451021613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250784.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 142451021613 its reverse (316120154241), we get a palindrome (458571175854).

The spelling of 142451021613 in words is "one hundred forty-two billion, four hundred fifty-one million, twenty-one thousand, six hundred thirteen".