155234269 has 2 divisors, whose sum is σ = 155234270. Its totient is φ = 155234268.

The previous prime is 155234263. The next prime is 155234333. The reversal of 155234269 is 962432551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153884025 + 1350244 = 12405^2 + 1162^2 .

It is an emirp because it is prime and its reverse (962432551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155234269 - 2⁷ = 155234141 is a prime.

It is a super-2 number, since 2×155234269² = 48195356543928722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155234263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77617134 + 77617135.

It is an arithmetic number, because the mean of its divisors is an integer number (77617135).

Almost surely, 2^155234269 is an apocalyptic number.

It is an amenable number.

155234269 is a deficient number, since it is larger than the sum of its proper divisors (1).

155234269 is an equidigital number, since it uses as much as digits as its factorization.

155234269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 155234269 is about 12459.3045151004. The cubic root of 155234269 is about 537.4390270840.

The spelling of 155234269 in words is "one hundred fifty-five million, two hundred thirty-four thousand, two hundred sixty-nine".