140015149 has 2 divisors, whose sum is σ = 140015150. Its totient is φ = 140015148.

The previous prime is 140015119. The next prime is 140015243. The reversal of 140015149 is 941510041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129549924 + 10465225 = 11382^2 + 3235^2 .

It is a cyclic number.

It is not a de Polignac number, because 140015149 - 2¹¹ = 140013101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140015119) 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, 70007574 + 70007575.

It is an arithmetic number, because the mean of its divisors is an integer number (70007575).

Almost surely, 2^140015149 is an apocalyptic number.

It is an amenable number.

140015149 is a deficient number, since it is larger than the sum of its proper divisors (1).

140015149 is an equidigital number, since it uses as much as digits as its factorization.

140015149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 140015149 is about 11832.7997109729. The cubic root of 140015149 is about 519.2681383413.

The spelling of 140015149 in words is "one hundred forty million, fifteen thousand, one hundred forty-nine".