142400663 has 2 divisors, whose sum is σ = 142400664. Its totient is φ = 142400662.

The previous prime is 142400651. The next prime is 142400711. The reversal of 142400663 is 366004241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142400663 - 2¹⁴ = 142384279 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142400633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71200331 + 71200332.

It is an arithmetic number, because the mean of its divisors is an integer number (71200332).

Almost surely, 2^142400663 is an apocalyptic number.

142400663 is a deficient number, since it is larger than the sum of its proper divisors (1).

142400663 is an equidigital number, since it uses as much as digits as its factorization.

142400663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 142400663 is about 11933.1748918718. The cubic root of 142400663 is about 522.2005646787.

The spelling of 142400663 in words is "one hundred forty-two million, four hundred thousand, six hundred sixty-three".