140670137 has 2 divisors, whose sum is σ = 140670138. Its totient is φ = 140670136.

The previous prime is 140670133. The next prime is 140670149. The reversal of 140670137 is 731076041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132963961 + 7706176 = 11531^2 + 2776^2 .

It is a cyclic number.

It is not a de Polignac number, because 140670137 - 2² = 140670133 is a prime.

It is not a weakly prime, because it can be changed into another prime (140670133) 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, 70335068 + 70335069.

It is an arithmetic number, because the mean of its divisors is an integer number (70335069).

Almost surely, 2^140670137 is an apocalyptic number.

It is an amenable number.

140670137 is a deficient number, since it is larger than the sum of its proper divisors (1).

140670137 is an equidigital number, since it uses as much as digits as its factorization.

140670137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 140670137 is about 11860.4442159643. Note that the first 3 decimals coincide. The cubic root of 140670137 is about 520.0765875852.

The spelling of 140670137 in words is "one hundred forty million, six hundred seventy thousand, one hundred thirty-seven".