752271139 has 2 divisors, whose sum is σ = 752271140. Its totient is φ = 752271138.

The previous prime is 752271133. The next prime is 752271167. The reversal of 752271139 is 931172257.

It is a weak prime.

It is an emirp because it is prime and its reverse (931172257) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-752271139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 752271098 and 752271107.

It is not a weakly prime, because it can be changed into another prime (752271133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376135569 + 376135570.

It is an arithmetic number, because the mean of its divisors is an integer number (376135570).

Almost surely, 2^752271139 is an apocalyptic number.

752271139 is a deficient number, since it is larger than the sum of its proper divisors (1).

752271139 is an equidigital number, since it uses as much as digits as its factorization.

752271139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 752271139 is about 27427.5616670531. The cubic root of 752271139 is about 909.4764685791.

The spelling of 752271139 in words is "seven hundred fifty-two million, two hundred seventy-one thousand, one hundred thirty-nine".