140213873 has 2 divisors, whose sum is σ = 140213874. Its totient is φ = 140213872.

The previous prime is 140213849. The next prime is 140213963. The reversal of 140213873 is 378312041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127418944 + 12794929 = 11288^2 + 3577^2 .

It is a cyclic number.

It is not a de Polignac number, because 140213873 - 2¹² = 140209777 is a prime.

It is not a weakly prime, because it can be changed into another prime (140213813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70106936 + 70106937.

It is an arithmetic number, because the mean of its divisors is an integer number (70106937).

Almost surely, 2^140213873 is an apocalyptic number.

It is an amenable number.

140213873 is a deficient number, since it is larger than the sum of its proper divisors (1).

140213873 is an equidigital number, since it uses as much as digits as its factorization.

140213873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 140213873 is about 11841.1939009544. The cubic root of 140213873 is about 519.5136885810.

The spelling of 140213873 in words is "one hundred forty million, two hundred thirteen thousand, eight hundred seventy-three".