155230039 has 2 divisors, whose sum is σ = 155230040. Its totient is φ = 155230038.

The previous prime is 155230037. The next prime is 155230079. The reversal of 155230039 is 930032551.

155230039 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 155230039 - 2¹ = 155230037 is a prime.

Together with 155230037, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 155229989 and 155230016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155230037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77615019 + 77615020.

It is an arithmetic number, because the mean of its divisors is an integer number (77615020).

Almost surely, 2^155230039 is an apocalyptic number.

155230039 is a deficient number, since it is larger than the sum of its proper divisors (1).

155230039 is an equidigital number, since it uses as much as digits as its factorization.

155230039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 155230039 is about 12459.1347612906. The cubic root of 155230039 is about 537.4341454563.

The spelling of 155230039 in words is "one hundred fifty-five million, two hundred thirty thousand, thirty-nine".