140364909 has 12 divisors (see below), whose sum is σ = 205316800. Its totient is φ = 92391624.

The previous prime is 140364877. The next prime is 140364923. The reversal of 140364909 is 909463041.

140364909 is a `hidden beast` number, since 1 + 4 + 0 + 3 + 649 + 0 + 9 = 666.

It is not a de Polignac number, because 140364909 - 2⁵ = 140364877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140364409) 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, 97999 + ... + 99420.

Almost surely, 2^140364909 is an apocalyptic number.

It is an amenable number.

140364909 is a deficient number, since it is larger than the sum of its proper divisors (64951891).

140364909 is a wasteful number, since it uses less digits than its factorization.

140364909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197504 (or 197501 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 140364909 is about 11847.5697507970. The cubic root of 140364909 is about 519.7001587469.

The spelling of 140364909 in words is "one hundred forty million, three hundred sixty-four thousand, nine hundred nine".