139308247433 has 2 divisors, whose sum is σ = 139308247434. Its totient is φ = 139308247432.

The previous prime is 139308247417. The next prime is 139308247487. The reversal of 139308247433 is 334742803931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114885746704 + 24422500729 = 338948^2 + 156277^2 .

It is a cyclic number.

It is not a de Polignac number, because 139308247433 - 2⁴ = 139308247417 is a prime.

It is not a weakly prime, because it can be changed into another prime (139308247333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69654123716 + 69654123717.

It is an arithmetic number, because the mean of its divisors is an integer number (69654123717).

Almost surely, 2^139308247433 is an apocalyptic number.

It is an amenable number.

139308247433 is a deficient number, since it is larger than the sum of its proper divisors (1).

139308247433 is an equidigital number, since it uses as much as digits as its factorization.

139308247433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 139308247433 in words is "one hundred thirty-nine billion, three hundred eight million, two hundred forty-seven thousand, four hundred thirty-three".