140889241 has 2 divisors, whose sum is σ = 140889242. Its totient is φ = 140889240.

The previous prime is 140889233. The next prime is 140889277. The reversal of 140889241 is 142988041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76825225 + 64064016 = 8765^2 + 8004^2 .

It is a cyclic number.

It is not a de Polignac number, because 140889241 - 2³ = 140889233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140889241.

It is not a weakly prime, because it can be changed into another prime (140889641) 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, 70444620 + 70444621.

It is an arithmetic number, because the mean of its divisors is an integer number (70444621).

Almost surely, 2^140889241 is an apocalyptic number.

It is an amenable number.

140889241 is a deficient number, since it is larger than the sum of its proper divisors (1).

140889241 is an equidigital number, since it uses as much as digits as its factorization.

140889241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 140889241 is about 11869.6773755650. The cubic root of 140889241 is about 520.3464665895.

The spelling of 140889241 in words is "one hundred forty million, eight hundred eighty-nine thousand, two hundred forty-one".