140953591 has 4 divisors (see below), whose sum is σ = 147082032. Its totient is φ = 134825152.

The previous prime is 140953577. The next prime is 140953619. The reversal of 140953591 is 195359041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 195359041 = 11117 ⋅17573.

It is a cyclic number.

It is not a de Polignac number, because 140953591 - 2²³ = 132564983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140953591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140953691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3064186 + ... + 3064231.

It is an arithmetic number, because the mean of its divisors is an integer number (36770508).

Almost surely, 2^140953591 is an apocalyptic number.

140953591 is a deficient number, since it is larger than the sum of its proper divisors (6128441).

140953591 is an equidigital number, since it uses as much as digits as its factorization.

140953591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128440.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 140953591 is about 11872.3877547863. The cubic root of 140953591 is about 520.4256758518.

The spelling of 140953591 in words is "one hundred forty million, nine hundred fifty-three thousand, five hundred ninety-one".