140577121 has 2 divisors, whose sum is σ = 140577122. Its totient is φ = 140577120.

The previous prime is 140577119. The next prime is 140577133. The reversal of 140577121 is 121775041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139830625 + 746496 = 11825^2 + 864^2 .

It is a cyclic number.

It is not a de Polignac number, because 140577121 - 2¹ = 140577119 is a prime.

Together with 140577119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 140577121.

It is not a weakly prime, because it can be changed into another prime (140577421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70288560 + 70288561.

It is an arithmetic number, because the mean of its divisors is an integer number (70288561).

Almost surely, 2^140577121 is an apocalyptic number.

It is an amenable number.

140577121 is a deficient number, since it is larger than the sum of its proper divisors (1).

140577121 is an equidigital number, since it uses as much as digits as its factorization.

140577121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 140577121 is about 11856.5222978747. The cubic root of 140577121 is about 519.9619313847.

The spelling of 140577121 in words is "one hundred forty million, five hundred seventy-seven thousand, one hundred twenty-one".