140640367 has 16 divisors (see below), whose sum is σ = 165998592. Its totient is φ = 116635680.

The previous prime is 140640361. The next prime is 140640389. The reversal of 140640367 is 763046041.

It is not a de Polignac number, because 140640367 - 2³ = 140640359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140640361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48048 + ... + 50890.

It is an arithmetic number, because the mean of its divisors is an integer number (10374912).

Almost surely, 2^140640367 is an apocalyptic number.

140640367 is a deficient number, since it is larger than the sum of its proper divisors (25358225).

140640367 is a wasteful number, since it uses less digits than its factorization.

140640367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 140640367 is about 11859.1891375422. The cubic root of 140640367 is about 520.0398970867.

The spelling of 140640367 in words is "one hundred forty million, six hundred forty thousand, three hundred sixty-seven".