140394549583 has 4 divisors (see below), whose sum is σ = 142774118280. Its totient is φ = 138014980888.

The previous prime is 140394549571. The next prime is 140394549629. The reversal of 140394549583 is 385945493041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 385945493041 = 526709 ⋅732749.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140394549583 is a prime.

It is a super-2 number, since 2×140394549583² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140394549553) 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, 1189784260 + ... + 1189784377.

It is an arithmetic number, because the mean of its divisors is an integer number (35693529570).

Almost surely, 2^140394549583 is an apocalyptic number.

140394549583 is a deficient number, since it is larger than the sum of its proper divisors (2379568697).

140394549583 is an equidigital number, since it uses as much as digits as its factorization.

140394549583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379568696.

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 140394549583 in words is "one hundred forty billion, three hundred ninety-four million, five hundred forty-nine thousand, five hundred eighty-three".