140012242 has 4 divisors (see below), whose sum is σ = 210018366. Its totient is φ = 70006120.

The previous prime is 140012239. The next prime is 140012281. The reversal of 140012242 is 242210041.

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., 134304921 + 5707321 = 11589^2 + 2389^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35003059 + ... + 35003062.

Almost surely, 2^140012242 is an apocalyptic number.

140012242 is a deficient number, since it is larger than the sum of its proper divisors (70006124).

140012242 is an equidigital number, since it uses as much as digits as its factorization.

140012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70006123.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 140012242 is about 11832.6768738101. The cubic root of 140012242 is about 519.2645446280.

Adding to 140012242 its reverse (242210041), we get a palindrome (382222283).

The spelling of 140012242 in words is "one hundred forty million, twelve thousand, two hundred forty-two".