140311463 has 4 divisors (see below), whose sum is σ = 140857680. Its totient is φ = 139765248.

The previous prime is 140311453. The next prime is 140311481. The reversal of 140311463 is 364113041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140311463 - 2⁶ = 140311399 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 (140311453) 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, 272723 + ... + 273236.

It is an arithmetic number, because the mean of its divisors is an integer number (35214420).

Almost surely, 2^140311463 is an apocalyptic number.

140311463 is a deficient number, since it is larger than the sum of its proper divisors (546217).

140311463 is an equidigital number, since it uses as much as digits as its factorization.

140311463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546216.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 140311463 is about 11845.3139679791. The cubic root of 140311463 is about 519.6341892180.

The spelling of 140311463 in words is "one hundred forty million, three hundred eleven thousand, four hundred sixty-three".