140791555 has 16 divisors (see below), whose sum is σ = 173560320. Its totient is φ = 109588192.

The previous prime is 140791531. The next prime is 140791561. The reversal of 140791555 is 555197041.

It is a cyclic number.

It is not a de Polignac number, because 140791555 - 2⁹ = 140791043 is a prime.

It is an unprimeable number.

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, 40392 + ... + 43738.

It is an arithmetic number, because the mean of its divisors is an integer number (10847520).

Almost surely, 2^140791555 is an apocalyptic number.

140791555 is a deficient number, since it is larger than the sum of its proper divisors (32768765).

140791555 is a wasteful number, since it uses less digits than its factorization.

140791555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 140791555 is about 11865.5617229021. The cubic root of 140791555 is about 520.2261774959.

The spelling of 140791555 in words is "one hundred forty million, seven hundred ninety-one thousand, five hundred fifty-five".