140655069 has 16 divisors (see below), whose sum is σ = 208635840. Its totient is φ = 93654000.

The previous prime is 140655061. The next prime is 140655077. The reversal of 140655069 is 960556041.

140655069 is a `hidden beast` number, since 1 + 40 + 6 + 550 + 69 = 666.

140655069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140655061) and next prime (140655077).

It is not a de Polignac number, because 140655069 - 2³ = 140655061 is a prime.

It is a super-2 number, since 2×140655069² = 39567696870789522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140655061) 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, 22819 + ... + 28319.

It is an arithmetic number, because the mean of its divisors is an integer number (13039740).

Almost surely, 2^140655069 is an apocalyptic number.

It is an amenable number.

140655069 is a deficient number, since it is larger than the sum of its proper divisors (67980771).

140655069 is an equidigital number, since it uses as much as digits as its factorization.

140655069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6457 (or 6451 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 140655069 is about 11859.8089782256. The cubic root of 140655069 is about 520.0580174418.

The spelling of 140655069 in words is "one hundred forty million, six hundred fifty-five thousand, sixty-nine".