155153227 has 2 divisors, whose sum is σ = 155153228. Its totient is φ = 155153226.

The previous prime is 155153197. The next prime is 155153231. The reversal of 155153227 is 722351551.

It is a strong prime.

It is an emirp because it is prime and its reverse (722351551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155153227 is a prime.

It is not a weakly prime, because it can be changed into another prime (155153267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77576613 + 77576614.

It is an arithmetic number, because the mean of its divisors is an integer number (77576614).

Almost surely, 2^155153227 is an apocalyptic number.

155153227 is a deficient number, since it is larger than the sum of its proper divisors (1).

155153227 is an equidigital number, since it uses as much as digits as its factorization.

155153227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 31.

The square root of 155153227 is about 12456.0518223071. The cubic root of 155153227 is about 537.3454852056.

The spelling of 155153227 in words is "one hundred fifty-five million, one hundred fifty-three thousand, two hundred twenty-seven".