155013434039 has 2 divisors, whose sum is σ = 155013434040. Its totient is φ = 155013434038.

The previous prime is 155013434003. The next prime is 155013434063. The reversal of 155013434039 is 930434310551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155013434039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155013433993 and 155013434011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155013494039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77506717019 + 77506717020.

It is an arithmetic number, because the mean of its divisors is an integer number (77506717020).

Almost surely, 2^155013434039 is an apocalyptic number.

155013434039 is a deficient number, since it is larger than the sum of its proper divisors (1).

155013434039 is an equidigital number, since it uses as much as digits as its factorization.

155013434039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 155013434039 in words is "one hundred fifty-five billion, thirteen million, four hundred thirty-four thousand, thirty-nine".