142720113 has 4 divisors (see below), whose sum is σ = 190293488. Its totient is φ = 95146740.

The previous prime is 142720103. The next prime is 142720147. The reversal of 142720113 is 311027241.

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 not a de Polignac number, because 142720113 - 2⁹ = 142719601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142720113.

It is not an unprimeable number, because it can be changed into a prime (142720103) 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, 23786683 + ... + 23786688.

It is an arithmetic number, because the mean of its divisors is an integer number (47573372).

Almost surely, 2^142720113 is an apocalyptic number.

It is an amenable number.

142720113 is a deficient number, since it is larger than the sum of its proper divisors (47573375).

142720113 is an equidigital number, since it uses as much as digits as its factorization.

142720113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47573374.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 142720113 is about 11946.5523478533. The cubic root of 142720113 is about 522.5907603911.

Adding to 142720113 its reverse (311027241), we get a palindrome (453747354).

The spelling of 142720113 in words is "one hundred forty-two million, seven hundred twenty thousand, one hundred thirteen".