140403146 has 8 divisors (see below), whose sum is σ = 226805124. Its totient is φ = 64801440.

The previous prime is 140403143. The next prime is 140403149. The reversal of 140403146 is 641304041.

140403146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140403143) and next prime (140403149).

It can be written as a sum of positive squares in 2 ways, for example, as 137475625 + 2927521 = 11725^2 + 1711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (140403143) 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, 2700035 + ... + 2700086.

Almost surely, 2^140403146 is an apocalyptic number.

140403146 is a deficient number, since it is larger than the sum of its proper divisors (86401978).

140403146 is a wasteful number, since it uses less digits than its factorization.

140403146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400136.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 140403146 is about 11849.1833473873. The cubic root of 140403146 is about 519.7473452101.

Adding to 140403146 its reverse (641304041), we get a palindrome (781707187).

The spelling of 140403146 in words is "one hundred forty million, four hundred three thousand, one hundred forty-six".