140443454 has 16 divisors (see below), whose sum is σ = 218572800. Its totient is φ = 67609080.

The previous prime is 140443447. The next prime is 140443463. The reversal of 140443454 is 454344041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6647 + ... + 18029.

It is an arithmetic number, because the mean of its divisors is an integer number (13660800).

Almost surely, 2^140443454 is an apocalyptic number.

140443454 is a deficient number, since it is larger than the sum of its proper divisors (78129346).

140443454 is a wasteful number, since it uses less digits than its factorization.

140443454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11615.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 140443454 is about 11850.8841020407. The cubic root of 140443454 is about 519.7970781210.

Adding to 140443454 its reverse (454344041), we get a palindrome (594787495).

The spelling of 140443454 in words is "one hundred forty million, four hundred forty-three thousand, four hundred fifty-four".