142214407 has 2 divisors, whose sum is σ = 142214408. Its totient is φ = 142214406.

The previous prime is 142214399. The next prime is 142214419. The reversal of 142214407 is 704412241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142214407 - 2³ = 142214399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142214467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71107203 + 71107204.

It is an arithmetic number, because the mean of its divisors is an integer number (71107204).

Almost surely, 2^142214407 is an apocalyptic number.

142214407 is a deficient number, since it is larger than the sum of its proper divisors (1).

142214407 is an equidigital number, since it uses as much as digits as its factorization.

142214407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 142214407 is about 11925.3682123446. The cubic root of 142214407 is about 521.9727908680.

Adding to 142214407 its reverse (704412241), we get a palindrome (846626648).

The spelling of 142214407 in words is "one hundred forty-two million, two hundred fourteen thousand, four hundred seven".