140706493 has 4 divisors (see below), whose sum is σ = 140734240. Its totient is φ = 140678748.

The previous prime is 140706487. The next prime is 140706509. The reversal of 140706493 is 394607041.

It is a happy number.

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: 394607041 = 263 ⋅1500407.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140706493 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 (140704493) 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, 3855 + ... + 17212.

It is an arithmetic number, because the mean of its divisors is an integer number (35183560).

Almost surely, 2^140706493 is an apocalyptic number.

It is an amenable number.

140706493 is a deficient number, since it is larger than the sum of its proper divisors (27747).

140706493 is an equidigital number, since it uses as much as digits as its factorization.

140706493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27746.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 140706493 is about 11861.9767745515. The cubic root of 140706493 is about 520.1213880812.

The spelling of 140706493 in words is "one hundred forty million, seven hundred six thousand, four hundred ninety-three".