140543234 has 8 divisors (see below), whose sum is σ = 227031420. Its totient is φ = 64866096.

The previous prime is 140543213. The next prime is 140543237. The reversal of 140543234 is 432345041.

It can be written as a sum of positive squares in 2 ways, for example, as 140541025 + 2209 = 11855^2 + 47^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 5405509 = 140543234 / (1 + 4 + 0 + 5 + 4 + 3 + 2 + 3 + 4).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140543237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702729 + ... + 2702780.

Almost surely, 2^140543234 is an apocalyptic number.

140543234 is a deficient number, since it is larger than the sum of its proper divisors (86488186).

140543234 is a wasteful number, since it uses less digits than its factorization.

140543234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405524.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 140543234 is about 11855.0931670738. The cubic root of 140543234 is about 519.9201479948.

Adding to 140543234 its reverse (432345041), we get a palindrome (572888275).

The spelling of 140543234 in words is "one hundred forty million, five hundred forty-three thousand, two hundred thirty-four".