145142142013 has 4 divisors (see below), whose sum is σ = 158336882208. Its totient is φ = 131947401820.

The previous prime is 145142141939. The next prime is 145142142017. The reversal of 145142142013 is 310241241541.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145142142013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145142142017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6597370081 + ... + 6597370102.

It is an arithmetic number, because the mean of its divisors is an integer number (39584220552).

Almost surely, 2^145142142013 is an apocalyptic number.

It is an amenable number.

145142142013 is a deficient number, since it is larger than the sum of its proper divisors (13194740195).

145142142013 is a wasteful number, since it uses less digits than its factorization.

145142142013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13194740194.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 145142142013 its reverse (310241241541), we get a palindrome (455383383554).

The spelling of 145142142013 in words is "one hundred forty-five billion, one hundred forty-two million, one hundred forty-two thousand, thirteen".