140173057 has 8 divisors (see below), whose sum is σ = 145017576. Its totient is φ = 135384192.

The previous prime is 140173049. The next prime is 140173069. The reversal of 140173057 is 750371041.

It can be written as a sum of positive squares in 4 ways, for example, as 13024881 + 127148176 = 3609^2 + 11276^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140173057 - 2³ = 140173049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140173087) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8758 + ... + 18895.

It is an arithmetic number, because the mean of its divisors is an integer number (18127197).

Almost surely, 2^140173057 is an apocalyptic number.

It is an amenable number.

140173057 is a deficient number, since it is larger than the sum of its proper divisors (4844519).

140173057 is a wasteful number, since it uses less digits than its factorization.

140173057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27827.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 140173057 is about 11839.4703006511. The cubic root of 140173057 is about 519.4632738630.

The spelling of 140173057 in words is "one hundred forty million, one hundred seventy-three thousand, fifty-seven".