140270618 has 8 divisors (see below), whose sum is σ = 212489460. Its totient is φ = 69440800.

The previous prime is 140270617. The next prime is 140270657. The reversal of 140270618 is 816072041.

It can be written as a sum of positive squares in 2 ways, for example, as 137288089 + 2982529 = 11717^2 + 1727^2 .

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

It is not an unprimeable number, because it can be changed into a prime (140270617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347003 + ... + 347406.

Almost surely, 2^140270618 is an apocalyptic number.

140270618 is a deficient number, since it is larger than the sum of its proper divisors (72218842).

140270618 is a wasteful number, since it uses less digits than its factorization.

140270618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694512.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 140270618 is about 11843.5897429791. The cubic root of 140270618 is about 519.5837620758.

The spelling of 140270618 in words is "one hundred forty million, two hundred seventy thousand, six hundred eighteen".