139854343 has 2 divisors, whose sum is σ = 139854344. Its totient is φ = 139854342.

The previous prime is 139854293. The next prime is 139854371. The reversal of 139854343 is 343458931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139854343 - 2¹³ = 139846151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139854296 and 139854305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139854373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69927171 + 69927172.

It is an arithmetic number, because the mean of its divisors is an integer number (69927172).

Almost surely, 2^139854343 is an apocalyptic number.

139854343 is a deficient number, since it is larger than the sum of its proper divisors (1).

139854343 is an equidigital number, since it uses as much as digits as its factorization.

139854343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 139854343 is about 11826.0028327411. The cubic root of 139854343 is about 519.0692707661.

The spelling of 139854343 in words is "one hundred thirty-nine million, eight hundred fifty-four thousand, three hundred forty-three".