142012401 has 16 divisors (see below), whose sum is σ = 195226368. Its totient is φ = 91756800.

The previous prime is 142012399. The next prime is 142012417. The reversal of 142012401 is 104210241.

It is not a de Polignac number, because 142012401 - 2¹ = 142012399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142012001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27721 + ... + 32441.

It is an arithmetic number, because the mean of its divisors is an integer number (12201648).

Almost surely, 2^142012401 is an apocalyptic number.

It is an amenable number.

142012401 is a deficient number, since it is larger than the sum of its proper divisors (53213967).

142012401 is a wasteful number, since it uses less digits than its factorization.

142012401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 142012401 is about 11916.8956108544. The cubic root of 142012401 is about 521.7255313451.

Adding to 142012401 its reverse (104210241), we get a palindrome (246222642).

The spelling of 142012401 in words is "one hundred forty-two million, twelve thousand, four hundred one".