140813109 has 12 divisors (see below), whose sum is σ = 203838336. Its totient is φ = 93671592.

The previous prime is 140813063. The next prime is 140813137. The reversal of 140813109 is 901318041.

It is not a de Polignac number, because 140813109 - 2⁷ = 140812981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140813149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12549 + ... + 20954.

It is an arithmetic number, because the mean of its divisors is an integer number (16986528).

Almost surely, 2^140813109 is an apocalyptic number.

It is an amenable number.

140813109 is a deficient number, since it is larger than the sum of its proper divisors (63025227).

140813109 is a wasteful number, since it uses less digits than its factorization.

140813109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33976 (or 33973 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 140813109 is about 11866.4699468713. The cubic root of 140813109 is about 520.2527235551.

The spelling of 140813109 in words is "one hundred forty million, eight hundred thirteen thousand, one hundred nine".