140035444397 has 4 divisors (see below), whose sum is σ = 141344186976. Its totient is φ = 138726701820.

The previous prime is 140035444391. The next prime is 140035444429. The reversal of 140035444397 is 793444530041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793444530041 = 71 ⋅11175275071.

It is a cyclic number.

It is not a de Polignac number, because 140035444397 - 2³⁰ = 138961702573 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 (140035444391) 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, 654371129 + ... + 654371342.

It is an arithmetic number, because the mean of its divisors is an integer number (35336046744).

Almost surely, 2^140035444397 is an apocalyptic number.

It is an amenable number.

140035444397 is a deficient number, since it is larger than the sum of its proper divisors (1308742579).

140035444397 is a wasteful number, since it uses less digits than its factorization.

140035444397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308742578.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 140035444397 in words is "one hundred forty billion, thirty-five million, four hundred forty-four thousand, three hundred ninety-seven".