155030340089 has 2 divisors, whose sum is σ = 155030340090. Its totient is φ = 155030340088.

The previous prime is 155030340079. The next prime is 155030340131. The reversal of 155030340089 is 980043030551.

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., 131999242489 + 23031097600 = 363317^2 + 151760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155030340089 is a prime.

It is a super-2 number, since 2×155030340089² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (155030340019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77515170044 + 77515170045.

It is an arithmetic number, because the mean of its divisors is an integer number (77515170045).

Almost surely, 2^155030340089 is an apocalyptic number.

It is an amenable number.

155030340089 is a deficient number, since it is larger than the sum of its proper divisors (1).

155030340089 is an equidigital number, since it uses as much as digits as its factorization.

155030340089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 155030340089 in words is "one hundred fifty-five billion, thirty million, three hundred forty thousand, eighty-nine".