140164441 has 2 divisors, whose sum is σ = 140164442. Its totient is φ = 140164440.

The previous prime is 140164421. The next prime is 140164483. The reversal of 140164441 is 144461041.

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., 136539225 + 3625216 = 11685^2 + 1904^2 .

It is an emirp because it is prime and its reverse (144461041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140164441 - 2⁷ = 140164313 is a prime.

It is not a weakly prime, because it can be changed into another prime (140164421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70082220 + 70082221.

It is an arithmetic number, because the mean of its divisors is an integer number (70082221).

Almost surely, 2^140164441 is an apocalyptic number.

It is an amenable number.

140164441 is a deficient number, since it is larger than the sum of its proper divisors (1).

140164441 is an equidigital number, since it uses as much as digits as its factorization.

140164441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 140164441 is about 11839.1064274294. The cubic root of 140164441 is about 519.4526303833.

The spelling of 140164441 in words is "one hundred forty million, one hundred sixty-four thousand, four hundred forty-one".