140949365 has 4 divisors (see below), whose sum is σ = 169139244. Its totient is φ = 112759488.

The previous prime is 140949323. The next prime is 140949383. The reversal of 140949365 is 563949041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563949041 = 17 ⋅33173473.

It can be written as a sum of positive squares in 2 ways, for example, as 59336209 + 81613156 = 7703^2 + 9034^2 .

It is a cyclic number.

It is not a de Polignac number, because 140949365 - 2¹² = 140945269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14094932 + ... + 14094941.

It is an arithmetic number, because the mean of its divisors is an integer number (42284811).

Almost surely, 2^140949365 is an apocalyptic number.

It is an amenable number.

140949365 is a deficient number, since it is larger than the sum of its proper divisors (28189879).

140949365 is an equidigital number, since it uses as much as digits as its factorization.

140949365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28189878.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 140949365 is about 11872.2097774593. The cubic root of 140949365 is about 520.4204747525.

The spelling of 140949365 in words is "one hundred forty million, nine hundred forty-nine thousand, three hundred sixty-five".