140436071 has 8 divisors (see below), whose sum is σ = 142125984. Its totient is φ = 138752640.

The previous prime is 140436041. The next prime is 140436103. The reversal of 140436071 is 170634041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140436071 - 2⁶ = 140436007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140436071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140436041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52355 + ... + 54971.

It is an arithmetic number, because the mean of its divisors is an integer number (17765748).

Almost surely, 2^140436071 is an apocalyptic number.

140436071 is a deficient number, since it is larger than the sum of its proper divisors (1689913).

140436071 is a wasteful number, since it uses less digits than its factorization.

140436071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 140436071 is about 11850.5726021994. The cubic root of 140436071 is about 519.7879695226.

The spelling of 140436071 in words is "one hundred forty million, four hundred thirty-six thousand, seventy-one".