142232201 has 4 divisors (see below), whose sum is σ = 142262400. Its totient is φ = 142202004.

The previous prime is 142232191. The next prime is 142232219. The reversal of 142232201 is 102232241.

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-142232201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142232201.

It is not an unprimeable number, because it can be changed into a prime (142232221) 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, 6341 + ... + 18018.

It is an arithmetic number, because the mean of its divisors is an integer number (35565600).

Almost surely, 2^142232201 is an apocalyptic number.

It is an amenable number.

142232201 is a deficient number, since it is larger than the sum of its proper divisors (30199).

142232201 is an equidigital number, since it uses as much as digits as its factorization.

142232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30198.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142232201 is about 11926.1142456376. The cubic root of 142232201 is about 521.9945598685.

Adding to 142232201 its reverse (102232241), we get a palindrome (244464442).

The spelling of 142232201 in words is "one hundred forty-two million, two hundred thirty-two thousand, two hundred one".