140728963 has 2 divisors, whose sum is σ = 140728964. Its totient is φ = 140728962.

The previous prime is 140728961. The next prime is 140728993. The reversal of 140728963 is 369827041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140728963 - 2¹ = 140728961 is a prime.

Together with 140728961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (140728961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70364481 + 70364482.

It is an arithmetic number, because the mean of its divisors is an integer number (70364482).

Almost surely, 2^140728963 is an apocalyptic number.

140728963 is a deficient number, since it is larger than the sum of its proper divisors (1).

140728963 is an equidigital number, since it uses as much as digits as its factorization.

140728963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 140728963 is about 11862.9238807302. The cubic root of 140728963 is about 520.1490733839.

The spelling of 140728963 in words is "one hundred forty million, seven hundred twenty-eight thousand, nine hundred sixty-three".