140220754 has 4 divisors (see below), whose sum is σ = 210331134. Its totient is φ = 70110376.

The previous prime is 140220737. The next prime is 140220803. The reversal of 140220754 is 457022041.

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., 126045529 + 14175225 = 11227^2 + 3765^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35055187 + ... + 35055190.

Almost surely, 2^140220754 is an apocalyptic number.

140220754 is a deficient number, since it is larger than the sum of its proper divisors (70110380).

140220754 is an equidigital number, since it uses as much as digits as its factorization.

140220754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70110379.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 140220754 is about 11841.4844508617. The cubic root of 140220754 is about 519.5221868252.

Adding to 140220754 its reverse (457022041), we get a palindrome (597242795).

The spelling of 140220754 in words is "one hundred forty million, two hundred twenty thousand, seven hundred fifty-four".