140049109 has 2 divisors, whose sum is σ = 140049110. Its totient is φ = 140049108.

The previous prime is 140049101. The next prime is 140049193. The reversal of 140049109 is 901940041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130302225 + 9746884 = 11415^2 + 3122^2 .

It is an emirp because it is prime and its reverse (901940041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140049109 - 2³ = 140049101 is a prime.

It is a super-2 number, since 2×140049109² = 39227505863387762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140049101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70024554 + 70024555.

It is an arithmetic number, because the mean of its divisors is an integer number (70024555).

Almost surely, 2^140049109 is an apocalyptic number.

It is an amenable number.

140049109 is a deficient number, since it is larger than the sum of its proper divisors (1).

140049109 is an equidigital number, since it uses as much as digits as its factorization.

140049109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 140049109 is about 11834.2346182590. The cubic root of 140049109 is about 519.3101169429.

The spelling of 140049109 in words is "one hundred forty million, forty-nine thousand, one hundred nine".