140314665 has 16 divisors (see below), whose sum is σ = 227347200. Its totient is φ = 73886592.

The previous prime is 140314663. The next prime is 140314679. The reversal of 140314665 is 566413041.

140314665 = 388² + 389² + ... + 782².

It is not a de Polignac number, because 140314665 - 2¹ = 140314663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140314663) 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, 58020 + ... + 60389.

It is an arithmetic number, because the mean of its divisors is an integer number (14209200).

Almost surely, 2^140314665 is an apocalyptic number.

140314665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140314665 is a deficient number, since it is larger than the sum of its proper divisors (87032535).

140314665 is a wasteful number, since it uses less digits than its factorization.

140314665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118496.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 140314665 is about 11845.4491261412. The cubic root of 140314665 is about 519.6381419860.

The spelling of 140314665 in words is "one hundred forty million, three hundred fourteen thousand, six hundred sixty-five".