140350387 has 4 divisors (see below), whose sum is σ = 141421896. Its totient is φ = 139278880.

The previous prime is 140350349. The next prime is 140350391. The reversal of 140350387 is 783053041.

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

It is a cyclic number.

It is not a de Polignac number, because 140350387 - 2¹¹ = 140348339 is a prime.

It is a super-2 number, since 2×140350387² = 39396462262099538, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140350687) 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, 535558 + ... + 535819.

It is an arithmetic number, because the mean of its divisors is an integer number (35355474).

Almost surely, 2^140350387 is an apocalyptic number.

140350387 is a deficient number, since it is larger than the sum of its proper divisors (1071509).

140350387 is a wasteful number, since it uses less digits than its factorization.

140350387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071508.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 140350387 is about 11846.9568666388. The cubic root of 140350387 is about 519.6822355921.

The spelling of 140350387 in words is "one hundred forty million, three hundred fifty thousand, three hundred eighty-seven".