140057 has 2 divisors, whose sum is σ = 140058. Its totient is φ = 140056.

The previous prime is 140053. The next prime is 140069. The reversal of 140057 is 750041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87616 + 52441 = 296^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 140057 - 2² = 140053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70028 + 70029.

It is an arithmetic number, because the mean of its divisors is an integer number (70029).

2¹⁴⁰⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

140057 is a deficient number, since it is larger than the sum of its proper divisors (1).

140057 is an equidigital number, since it uses as much as digits as its factorization.

140057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 140057 is about 374.2419003800. The cubic root of 140057 is about 51.9319870186.

Adding to 140057 its reverse (750041), we get a palindrome (890098).

It can be divided in two parts, 1400 and 57, that multiplied together give a triangular number (79800 = T₃₉₉).

The spelling of 140057 in words is "one hundred forty thousand, fifty-seven".