142407401 has 2 divisors, whose sum is σ = 142407402. Its totient is φ = 142407400.

The previous prime is 142407389. The next prime is 142407403. The reversal of 142407401 is 104704241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142181776 + 225625 = 11924^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 142407401 - 2²⁶ = 75298537 is a prime.

Together with 142407403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142407403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71203700 + 71203701.

It is an arithmetic number, because the mean of its divisors is an integer number (71203701).

Almost surely, 2^142407401 is an apocalyptic number.

It is an amenable number.

142407401 is a deficient number, since it is larger than the sum of its proper divisors (1).

142407401 is an equidigital number, since it uses as much as digits as its factorization.

142407401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 142407401 is about 11933.4572107164. The cubic root of 142407401 is about 522.2088009042.

The spelling of 142407401 in words is "one hundred forty-two million, four hundred seven thousand, four hundred one".