140771311 has 4 divisors (see below), whose sum is σ = 141585192. Its totient is φ = 139957432.

The previous prime is 140771299. The next prime is 140771317. The reversal of 140771311 is 113177041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113177041 = 17 ⋅6657473.

It is a cyclic number.

It is not a de Polignac number, because 140771311 - 2¹¹ = 140769263 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 (140771317) 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, 406681 + ... + 407026.

It is an arithmetic number, because the mean of its divisors is an integer number (35396298).

Almost surely, 2^140771311 is an apocalyptic number.

140771311 is a deficient number, since it is larger than the sum of its proper divisors (813881).

140771311 is an equidigital number, since it uses as much as digits as its factorization.

140771311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813880.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 140771311 is about 11864.7086352763. The cubic root of 140771311 is about 520.2012423745.

The spelling of 140771311 in words is "one hundred forty million, seven hundred seventy-one thousand, three hundred eleven".