140511242 has 8 divisors (see below), whose sum is σ = 213135300. Its totient is φ = 69466144.

The previous prime is 140511233. The next prime is 140511253. The reversal of 140511242 is 242115041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 137851081 + 2660161 = 11741^2 + 1631^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394517 + ... + 394872.

Almost surely, 2^140511242 is an apocalyptic number.

140511242 is a deficient number, since it is larger than the sum of its proper divisors (72624058).

140511242 is an equidigital number, since it uses as much as digits as its factorization.

140511242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789480.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 140511242 is about 11853.7437967926. The cubic root of 140511242 is about 519.8806950162.

Adding to 140511242 its reverse (242115041), we get a palindrome (382626283).

It can be divided in two parts, 1405 and 11242, that multiplied together give a triangular number (15795010 = T₅₆₂₀).

The spelling of 140511242 in words is "one hundred forty million, five hundred eleven thousand, two hundred forty-two".