1151055 has 12 divisors (see below), whose sum is σ = 1995240. Its totient is φ = 613872.

The previous prime is 1151047. The next prime is 1151057. The reversal of 1151055 is 5501511.

It is not a de Polignac number, because 1151055 - 2³ = 1151047 is a prime.

It is a super-2 number, since 2×1151055² = 2649855226050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12745 + ... + 12834.

It is an arithmetic number, because the mean of its divisors is an integer number (166270).

2^1151055 is an apocalyptic number.

1151055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151055 is a deficient number, since it is larger than the sum of its proper divisors (844185).

1151055 is a wasteful number, since it uses less digits than its factorization.

1151055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25590 (or 25587 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 1151055 is about 1072.8723129991. The cubic root of 1151055 is about 104.8009835679.

Adding to 1151055 its reverse (5501511), we get a palindrome (6652566).

The spelling of 1151055 in words is "one million, one hundred fifty-one thousand, fifty-five".