142432161256201 has 4 divisors (see below), whose sum is σ = 142432688996100. Its totient is φ = 142431633516304.

The previous prime is 142432161256169. The next prime is 142432161256213. The reversal of 142432161256201 is 102652161234241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119833546816201 + 22598614440000 = 10946851^2 + 4753800^2 .

It is a cyclic number.

It is not a de Polignac number, because 142432161256201 - 2⁵ = 142432161256169 is a prime.

It is a super-2 number, since 2×142432161256201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142432161257201) 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, 263464906 + ... + 264004963.

It is an arithmetic number, because the mean of its divisors is an integer number (35608172249025).

Almost surely, 2^{142432161256201} is an apocalyptic number.

It is an amenable number.

142432161256201 is a deficient number, since it is larger than the sum of its proper divisors (527739899).

142432161256201 is an equidigital number, since it uses as much as digits as its factorization.

142432161256201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527739898.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 142432161256201 in words is "one hundred forty-two trillion, four hundred thirty-two billion, one hundred sixty-one million, two hundred fifty-six thousand, two hundred one".