140026463 has 4 divisors (see below), whose sum is σ = 143811000. Its totient is φ = 136241928.

The previous prime is 140026429. The next prime is 140026499. The reversal of 140026463 is 364620041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364620041 = 293 ⋅1244437.

It is a cyclic number.

It is not a de Polignac number, because 140026463 - 2¹⁶ = 139960927 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 (140026423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892213 + ... + 1892286.

It is an arithmetic number, because the mean of its divisors is an integer number (35952750).

Almost surely, 2^140026463 is an apocalyptic number.

140026463 is a deficient number, since it is larger than the sum of its proper divisors (3784537).

140026463 is an equidigital number, since it uses as much as digits as its factorization.

140026463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784536.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 140026463 is about 11833.2777792123. The cubic root of 140026463 is about 519.2821245457.

The spelling of 140026463 in words is "one hundred forty million, twenty-six thousand, four hundred sixty-three".