140672317 has 4 divisors (see below), whose sum is σ = 140710780. Its totient is φ = 140633856.

The previous prime is 140672303. The next prime is 140672339. The reversal of 140672317 is 713276041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108284836 + 32387481 = 10406^2 + 5691^2 .

It is a cyclic number.

It is not a de Polignac number, because 140672317 - 2¹¹ = 140670269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140672717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13092 + ... + 21277.

It is an arithmetic number, because the mean of its divisors is an integer number (35177695).

Almost surely, 2^140672317 is an apocalyptic number.

It is an amenable number.

140672317 is a deficient number, since it is larger than the sum of its proper divisors (38463).

140672317 is an equidigital number, since it uses as much as digits as its factorization.

140672317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38462.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 140672317 is about 11860.5361177309. The cubic root of 140672317 is about 520.0792741566.

It can be divided in two parts, 14067 and 2317, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 140672317 in words is "one hundred forty million, six hundred seventy-two thousand, three hundred seventeen".