140634255 has 24 divisors (see below), whose sum is σ = 227079216. Its totient is φ = 74321920.

The previous prime is 140634239. The next prime is 140634269. The reversal of 140634255 is 552436041.

It is not a de Polignac number, because 140634255 - 2⁴ = 140634239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 547087 + ... + 547343.

It is an arithmetic number, because the mean of its divisors is an integer number (9461634).

Almost surely, 2^140634255 is an apocalyptic number.

140634255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140634255 is a deficient number, since it is larger than the sum of its proper divisors (86444961).

140634255 is an equidigital number, since it uses as much as digits as its factorization.

140634255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 140634255 is about 11858.9314442744. The cubic root of 140634255 is about 520.0323636169.

The spelling of 140634255 in words is "one hundred forty million, six hundred thirty-four thousand, two hundred fifty-five".