140293057 has 2 divisors, whose sum is σ = 140293058. Its totient is φ = 140293056.

The previous prime is 140293007. The next prime is 140293081. The reversal of 140293057 is 750392041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136328976 + 3964081 = 11676^2 + 1991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140293057 is a prime.

It is not a weakly prime, because it can be changed into another prime (140293007) 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 as a sum of consecutive naturals, namely, 70146528 + 70146529.

It is an arithmetic number, because the mean of its divisors is an integer number (70146529).

Almost surely, 2^140293057 is an apocalyptic number.

It is an amenable number.

140293057 is a deficient number, since it is larger than the sum of its proper divisors (1).

140293057 is an equidigital number, since it uses as much as digits as its factorization.

140293057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 140293057 is about 11844.5370107911. The cubic root of 140293057 is about 519.6114664246.

The spelling of 140293057 in words is "one hundred forty million, two hundred ninety-three thousand, fifty-seven".