140673361 has 8 divisors (see below), whose sum is σ = 142303464. Its totient is φ = 139050240.

The previous prime is 140673349. The next prime is 140673367. The reversal of 140673361 is 163376041.

It can be written as a sum of positive squares in 4 ways, for example, as 27888961 + 112784400 = 5281^2 + 10620^2 .

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 140673361 - 2¹⁵ = 140640593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140673367) 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, 46095 + ... + 49051.

It is an arithmetic number, because the mean of its divisors is an integer number (17787933).

Almost surely, 2^140673361 is an apocalyptic number.

It is an amenable number.

140673361 is a deficient number, since it is larger than the sum of its proper divisors (1630103).

140673361 is a wasteful number, since it uses less digits than its factorization.

140673361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 140673361 is about 11860.5801291505. The cubic root of 140673361 is about 520.0805607434.

The spelling of 140673361 in words is "one hundred forty million, six hundred seventy-three thousand, three hundred sixty-one".