139422433 has 2 divisors, whose sum is σ = 139422434. Its totient is φ = 139422432.

The previous prime is 139422403. The next prime is 139422443. The reversal of 139422433 is 334224931.

139422433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125821089 + 13601344 = 11217^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 139422433 - 2⁹ = 139421921 is a prime.

It is a super-2 number, since 2×139422433² = 38877229647278978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139422395 and 139422404.

It is not a weakly prime, because it can be changed into another prime (139422403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69711216 + 69711217.

It is an arithmetic number, because the mean of its divisors is an integer number (69711217).

Almost surely, 2^139422433 is an apocalyptic number.

It is an amenable number.

139422433 is a deficient number, since it is larger than the sum of its proper divisors (1).

139422433 is an equidigital number, since it uses as much as digits as its factorization.

139422433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

The square root of 139422433 is about 11807.7276814805. The cubic root of 139422433 is about 518.5343752230.

The spelling of 139422433 in words is "one hundred thirty-nine million, four hundred twenty-two thousand, four hundred thirty-three".