140401343 has 4 divisors (see below), whose sum is σ = 143825808. Its totient is φ = 136976880.

The previous prime is 140401337. The next prime is 140401357. The reversal of 140401343 is 343104041.

It is a happy number.

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 140401343 - 2⁸ = 140401087 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 (140401333) 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, 1712171 + ... + 1712252.

It is an arithmetic number, because the mean of its divisors is an integer number (35956452).

Almost surely, 2^140401343 is an apocalyptic number.

140401343 is a deficient number, since it is larger than the sum of its proper divisors (3424465).

140401343 is an equidigital number, since it uses as much as digits as its factorization.

140401343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424464.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 140401343 is about 11849.1072659505. The cubic root of 140401343 is about 519.7451204060.

Adding to 140401343 its reverse (343104041), we get a palindrome (483505384).

The spelling of 140401343 in words is "one hundred forty million, four hundred one thousand, three hundred forty-three".