140395565 has 16 divisors (see below), whose sum is σ = 176256000. Its totient is φ = 107154432.

The previous prime is 140395553. The next prime is 140395573. The reversal of 140395565 is 565593041.

It is a cyclic number.

It is not a de Polignac number, because 140395565 - 2¹² = 140391469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50276 + ... + 52994.

It is an arithmetic number, because the mean of its divisors is an integer number (11016000).

Almost surely, 2^140395565 is an apocalyptic number.

It is an amenable number.

140395565 is a deficient number, since it is larger than the sum of its proper divisors (35860435).

140395565 is a wasteful number, since it uses less digits than its factorization.

140395565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 140395565 is about 11848.8634476054. The cubic root of 140395565 is about 519.7379905395.

The spelling of 140395565 in words is "one hundred forty million, three hundred ninety-five thousand, five hundred sixty-five".