140559242 has 4 divisors (see below), whose sum is σ = 210838866. Its totient is φ = 70279620.

The previous prime is 140559241. The next prime is 140559253. The reversal of 140559242 is 242955041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94848121 + 45711121 = 9739^2 + 6761^2 .

It is a super-2 number, since 2×140559242² = 39513801023229128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140559199 and 140559208.

It is not an unprimeable number, because it can be changed into a prime (140559241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35139809 + ... + 35139812.

Almost surely, 2^140559242 is an apocalyptic number.

140559242 is a deficient number, since it is larger than the sum of its proper divisors (70279624).

140559242 is an equidigital number, since it uses as much as digits as its factorization.

140559242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70279623.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 140559242 is about 11855.7683007049. The cubic root of 140559242 is about 519.9398870353.

The spelling of 140559242 in words is "one hundred forty million, five hundred fifty-nine thousand, two hundred forty-two".