140980687 has 4 divisors (see below), whose sum is σ = 145842120. Its totient is φ = 136119256.

The previous prime is 140980669. The next prime is 140980727. The reversal of 140980687 is 786089041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786089041 = 31 ⋅25357711.

It is a cyclic number.

It is not a de Polignac number, because 140980687 - 2¹⁹ = 140456399 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 (140980607) 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, 2430673 + ... + 2430730.

It is an arithmetic number, because the mean of its divisors is an integer number (36460530).

Almost surely, 2^140980687 is an apocalyptic number.

140980687 is a deficient number, since it is larger than the sum of its proper divisors (4861433).

140980687 is an equidigital number, since it uses as much as digits as its factorization.

140980687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861432.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 140980687 is about 11873.5288351863. The cubic root of 140980687 is about 520.4590214623.

The spelling of 140980687 in words is "one hundred forty million, nine hundred eighty thousand, six hundred eighty-seven".