142202401 has 8 divisors (see below), whose sum is σ = 158431104. Its totient is φ = 126523920.

The previous prime is 142202393. The next prime is 142202429. The reversal of 142202401 is 104202241.

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 142202401 - 2³ = 142202393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142202201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137010 + ... + 138043.

It is an arithmetic number, because the mean of its divisors is an integer number (19803888).

Almost surely, 2^142202401 is an apocalyptic number.

142202401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142202401 is a deficient number, since it is larger than the sum of its proper divisors (16228703).

142202401 is a wasteful number, since it uses less digits than its factorization.

142202401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275111.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 142202401 is about 11924.8648210368. The cubic root of 142202401 is about 521.9581018225.

Adding to 142202401 its reverse (104202241), we get a palindrome (246404642).

The spelling of 142202401 in words is "one hundred forty-two million, two hundred two thousand, four hundred one".