140248189 has 2 divisors, whose sum is σ = 140248190. Its totient is φ = 140248188.

The previous prime is 140248183. The next prime is 140248193. The reversal of 140248189 is 981842041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126742564 + 13505625 = 11258^2 + 3675^2 .

It is a cyclic number.

It is not a de Polignac number, because 140248189 - 2⁹ = 140247677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140248183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70124094 + 70124095.

It is an arithmetic number, because the mean of its divisors is an integer number (70124095).

Almost surely, 2^140248189 is an apocalyptic number.

It is an amenable number.

140248189 is a deficient number, since it is larger than the sum of its proper divisors (1).

140248189 is an equidigital number, since it uses as much as digits as its factorization.

140248189 is an evil number, because the sum of its binary digits is even.

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

The square root of 140248189 is about 11842.6428216003. The cubic root of 140248189 is about 519.5560671207.

The spelling of 140248189 in words is "one hundred forty million, two hundred forty-eight thousand, one hundred eighty-nine".