142342201 has 8 divisors (see below), whose sum is σ = 146627208. Its totient is φ = 138096000.

The previous prime is 142342171. The next prime is 142342253. The reversal of 142342201 is 102243241.

It can be written as a sum of positive squares in 4 ways, for example, as 1207801 + 141134400 = 1099^2 + 11880^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142342201 - 2⁷ = 142342073 is a prime.

It is a super-2 number, since 2×142342201² = 40522604371048802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142342271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (18328401).

Almost surely, 2^142342201 is an apocalyptic number.

It is an amenable number.

142342201 is a deficient number, since it is larger than the sum of its proper divisors (4285007).

142342201 is a wasteful number, since it uses less digits than its factorization.

142342201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19403.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142342201 is about 11930.7250827433. The cubic root of 142342201 is about 522.1290924735.

Adding to 142342201 its reverse (102243241), we get a palindrome (244585442).

The spelling of 142342201 in words is "one hundred forty-two million, three hundred forty-two thousand, two hundred one".