142425401 has 4 divisors (see below), whose sum is σ = 142462500. Its totient is φ = 142388304.

The previous prime is 142425397. The next prime is 142425403. The reversal of 142425401 is 104524241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15840400 + 126585001 = 3980^2 + 11251^2 .

It is a cyclic number.

It is not a de Polignac number, because 142425401 - 2² = 142425397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142425403) 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, 12026 + ... + 20723.

It is an arithmetic number, because the mean of its divisors is an integer number (35615625).

Almost surely, 2^142425401 is an apocalyptic number.

It is an amenable number.

142425401 is a deficient number, since it is larger than the sum of its proper divisors (37099).

142425401 is an equidigital number, since it uses as much as digits as its factorization.

142425401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37098.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 142425401 is about 11934.2113690013. The cubic root of 142425401 is about 522.2308020135.

Adding to 142425401 its reverse (104524241), we get a palindrome (246949642).

The spelling of 142425401 in words is "one hundred forty-two million, four hundred twenty-five thousand, four hundred one".