155641327 has 2 divisors, whose sum is σ = 155641328. Its totient is φ = 155641326.

The previous prime is 155641279. The next prime is 155641361. The reversal of 155641327 is 723146551.

It is an a-pointer prime, because the next prime (155641361) can be obtained adding 155641327 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155641327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155641292 and 155641301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155641127) 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, 77820663 + 77820664.

It is an arithmetic number, because the mean of its divisors is an integer number (77820664).

Almost surely, 2^155641327 is an apocalyptic number.

155641327 is a deficient number, since it is larger than the sum of its proper divisors (1).

155641327 is an equidigital number, since it uses as much as digits as its factorization.

155641327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 155641327 is about 12475.6293228037. The cubic root of 155641327 is about 537.9083777309.

Adding to 155641327 its reverse (723146551), we get a palindrome (878787878).

The spelling of 155641327 in words is "one hundred fifty-five million, six hundred forty-one thousand, three hundred twenty-seven".