140986939 has 4 divisors (see below), whose sum is σ = 141124456. Its totient is φ = 140849424.

The previous prime is 140986927. The next prime is 140986949. The reversal of 140986939 is 939689041.

140986939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140986939 - 2⁵ = 140986907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140986892 and 140986901.

It is not an unprimeable number, because it can be changed into a prime (140986919) 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, 67209 + ... + 69274.

It is an arithmetic number, because the mean of its divisors is an integer number (35281114).

Almost surely, 2^140986939 is an apocalyptic number.

140986939 is a deficient number, since it is larger than the sum of its proper divisors (137517).

140986939 is a wasteful number, since it uses less digits than its factorization.

140986939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137516.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 140986939 is about 11873.7921069892. The cubic root of 140986939 is about 520.4667148605.

The spelling of 140986939 in words is "one hundred forty million, nine hundred eighty-six thousand, nine hundred thirty-nine".