140343463 has 4 divisors (see below), whose sum is σ = 151139128. Its totient is φ = 129547800.

The previous prime is 140343433. The next prime is 140343491. The reversal of 140343463 is 364343041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364343041 = 53 ⋅6874397.

It is a cyclic number.

It is not a de Polignac number, because 140343463 - 2¹³ = 140335271 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 (140343403) 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, 5397813 + ... + 5397838.

It is an arithmetic number, because the mean of its divisors is an integer number (37784782).

Almost surely, 2^140343463 is an apocalyptic number.

140343463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140343463 is a deficient number, since it is larger than the sum of its proper divisors (10795665).

140343463 is a wasteful number, since it uses less digits than its factorization.

140343463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10795664.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 140343463 is about 11846.6646360906. The cubic root of 140343463 is about 519.6736895072.

The spelling of 140343463 in words is "one hundred forty million, three hundred forty-three thousand, four hundred sixty-three".