139452743 has 2 divisors, whose sum is σ = 139452744. Its totient is φ = 139452742.

The previous prime is 139452739. The next prime is 139452757. The reversal of 139452743 is 347254931.

139452743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139452743 - 2² = 139452739 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 139452697 and 139452706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139452763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69726371 + 69726372.

It is an arithmetic number, because the mean of its divisors is an integer number (69726372).

Almost surely, 2^139452743 is an apocalyptic number.

139452743 is a deficient number, since it is larger than the sum of its proper divisors (1).

139452743 is an equidigital number, since it uses as much as digits as its factorization.

139452743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 139452743 is about 11809.0110932288. The cubic root of 139452743 is about 518.5719484164.

The spelling of 139452743 in words is "one hundred thirty-nine million, four hundred fifty-two thousand, seven hundred forty-three".