142758643 has 2 divisors, whose sum is σ = 142758644. Its totient is φ = 142758642.

The previous prime is 142758613. The next prime is 142758659. The reversal of 142758643 is 346857241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142758643 - 2¹³ = 142750451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142758596 and 142758605.

It is not a weakly prime, because it can be changed into another prime (142758613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71379321 + 71379322.

It is an arithmetic number, because the mean of its divisors is an integer number (71379322).

Almost surely, 2^142758643 is an apocalyptic number.

142758643 is a deficient number, since it is larger than the sum of its proper divisors (1).

142758643 is an equidigital number, since it uses as much as digits as its factorization.

142758643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 40.

The square root of 142758643 is about 11948.1648381666. The cubic root of 142758643 is about 522.6377839205.

The spelling of 142758643 in words is "one hundred forty-two million, seven hundred fifty-eight thousand, six hundred forty-three".