1155151 has 2 divisors, whose sum is σ = 1155152. Its totient is φ = 1155150.

The previous prime is 1155149. The next prime is 1155169. The reversal of 1155151 is 1515511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155151 - 2¹ = 1155149 is a prime.

Together with 1155149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577575 + 577576.

It is an arithmetic number, because the mean of its divisors is an integer number (577576).

2^1155151 is an apocalyptic number.

1155151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155151 is an equidigital number, since it uses as much as digits as its factorization.

1155151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125, while the sum is 19.

The square root of 1155151 is about 1074.7795122722. The cubic root of 1155151 is about 104.9251469533.

The spelling of 1155151 in words is "one million, one hundred fifty-five thousand, one hundred fifty-one".