139053329 has 2 divisors, whose sum is σ = 139053330. Its totient is φ = 139053328.

The previous prime is 139053323. The next prime is 139053349. The reversal of 139053329 is 923350931.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91718929 + 47334400 = 9577^2 + 6880^2 .

It is an emirp because it is prime and its reverse (923350931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139053329 - 2²⁴ = 122276113 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (139053323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69526664 + 69526665.

It is an arithmetic number, because the mean of its divisors is an integer number (69526665).

Almost surely, 2^139053329 is an apocalyptic number.

It is an amenable number.

139053329 is a deficient number, since it is larger than the sum of its proper divisors (1).

139053329 is an equidigital number, since it uses as much as digits as its factorization.

139053329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 139053329 is about 11792.0875590372. The cubic root of 139053329 is about 518.0763851816.

The spelling of 139053329 in words is "one hundred thirty-nine million, fifty-three thousand, three hundred twenty-nine".