140172343 has 2 divisors, whose sum is σ = 140172344. Its totient is φ = 140172342.

The previous prime is 140172287. The next prime is 140172349. The reversal of 140172343 is 343271041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140172343 - 2¹⁷ = 140041271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140172349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70086171 + 70086172.

It is an arithmetic number, because the mean of its divisors is an integer number (70086172).

Almost surely, 2^140172343 is an apocalyptic number.

140172343 is a deficient number, since it is larger than the sum of its proper divisors (1).

140172343 is an equidigital number, since it uses as much as digits as its factorization.

140172343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 140172343 is about 11839.4401472367. The cubic root of 140172343 is about 519.4623918642.

The spelling of 140172343 in words is "one hundred forty million, one hundred seventy-two thousand, three hundred forty-three".