155154230069 has 2 divisors, whose sum is σ = 155154230070. Its totient is φ = 155154230068.

The previous prime is 155154230051. The next prime is 155154230107. The reversal of 155154230069 is 960032451551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103597078225 + 51557151844 = 321865^2 + 227062^2 .

It is a cyclic number.

It is not a de Polignac number, because 155154230069 - 2²⁰ = 155153181493 is a prime.

It is a super-2 number, since 2×155154230069² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155154230029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77577115034 + 77577115035.

It is an arithmetic number, because the mean of its divisors is an integer number (77577115035).

Almost surely, 2^155154230069 is an apocalyptic number.

It is an amenable number.

155154230069 is a deficient number, since it is larger than the sum of its proper divisors (1).

155154230069 is an equidigital number, since it uses as much as digits as its factorization.

155154230069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 155154230069 in words is "one hundred fifty-five billion, one hundred fifty-four million, two hundred thirty thousand, sixty-nine".