140936865 has 16 divisors (see below), whose sum is σ = 227016000. Its totient is φ = 74660672.

The previous prime is 140936863. The next prime is 140936867. The reversal of 140936865 is 568639041.

It is an interprime number because it is at equal distance from previous prime (140936863) and next prime (140936867).

It is a cyclic number.

It is not a de Polignac number, because 140936865 - 2¹ = 140936863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140936863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29295 + ... + 33764.

It is an arithmetic number, because the mean of its divisors is an integer number (14188500).

Almost surely, 2^140936865 is an apocalyptic number.

140936865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140936865 is a deficient number, since it is larger than the sum of its proper divisors (86079135).

140936865 is a wasteful number, since it uses less digits than its factorization.

140936865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63216.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 140936865 is about 11871.6833263021. The cubic root of 140936865 is about 520.4050899173.

The spelling of 140936865 in words is "one hundred forty million, nine hundred thirty-six thousand, eight hundred sixty-five".