142243401 has 8 divisors (see below), whose sum is σ = 191042784. Its totient is φ = 94136480.

The previous prime is 142243379. The next prime is 142243411. The reversal of 142243401 is 104342241.

142243401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142243401 - 2⁹ = 142242889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142243411) 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, 172635 + ... + 173456.

It is an arithmetic number, because the mean of its divisors is an integer number (23880348).

Almost surely, 2^142243401 is an apocalyptic number.

It is an amenable number.

142243401 is a deficient number, since it is larger than the sum of its proper divisors (48799383).

142243401 is a wasteful number, since it uses less digits than its factorization.

142243401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346231.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142243401 is about 11926.5837941969. The cubic root of 142243401 is about 522.0082609048.

Adding to 142243401 its reverse (104342241), we get a palindrome (246585642).

The spelling of 142243401 in words is "one hundred forty-two million, two hundred forty-three thousand, four hundred one".