140709771 has 8 divisors (see below), whose sum is σ = 208458960. Its totient is φ = 93806496.

The previous prime is 140709743. The next prime is 140709797. The reversal of 140709771 is 177907041.

It is not a de Polignac number, because 140709771 - 2⁵ = 140709739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140709071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2605710 + ... + 2605763.

It is an arithmetic number, because the mean of its divisors is an integer number (26057370).

Almost surely, 2^140709771 is an apocalyptic number.

140709771 is a deficient number, since it is larger than the sum of its proper divisors (67749189).

140709771 is an equidigital number, since it uses as much as digits as its factorization.

140709771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211482 (or 5211476 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 140709771 is about 11862.1149463323. The cubic root of 140709771 is about 520.1254270909.

The spelling of 140709771 in words is "one hundred forty million, seven hundred nine thousand, seven hundred seventy-one".