140780663 has 4 divisors (see below), whose sum is σ = 141125280. Its totient is φ = 140436048.

The previous prime is 140780639. The next prime is 140780669. The reversal of 140780663 is 366087041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140780663 - 2⁶ = 140780599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140780669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171695 + ... + 172512.

It is an arithmetic number, because the mean of its divisors is an integer number (35281320).

Almost surely, 2^140780663 is an apocalyptic number.

140780663 is a deficient number, since it is larger than the sum of its proper divisors (344617).

140780663 is an equidigital number, since it uses as much as digits as its factorization.

140780663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344616.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 140780663 is about 11865.1027387040. The cubic root of 140780663 is about 520.2127618010.

The spelling of 140780663 in words is "one hundred forty million, seven hundred eighty thousand, six hundred sixty-three".