142201613 has 4 divisors (see below), whose sum is σ = 142279488. Its totient is φ = 142123740.

The previous prime is 142201603. The next prime is 142201639. The reversal of 142201613 is 316102241.

142201613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 142201613 - 2¹⁰ = 142200589 is a prime.

It is a super-4 number, since 4×142201613⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142201603) 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, 36131 + ... + 39872.

It is an arithmetic number, because the mean of its divisors is an integer number (35569872).

Almost surely, 2^142201613 is an apocalyptic number.

It is an amenable number.

142201613 is a deficient number, since it is larger than the sum of its proper divisors (77875).

142201613 is an equidigital number, since it uses as much as digits as its factorization.

142201613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77874.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 142201613 is about 11924.8317807842. The cubic root of 142201613 is about 521.9571376950.

Adding to 142201613 its reverse (316102241), we get a palindrome (458303854).

The spelling of 142201613 in words is "one hundred forty-two million, two hundred one thousand, six hundred thirteen".