1051155 has 48 divisors (see below), whose sum is σ = 2156544. Its totient is φ = 463680.

The previous prime is 1051153. The next prime is 1051157. The reversal of 1051155 is 5511501.

It is an interprime number because it is at equal distance from previous prime (1051153) and next prime (1051157).

It is not a de Polignac number, because 1051155 - 2¹ = 1051153 is a prime.

It is a super-2 number, since 2×1051155² = 2209853668050, which contains 22 as substring.

1051155 is a modest number, since divided by 1155 gives 105 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1051151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14770 + ... + 14840.

It is an arithmetic number, because the mean of its divisors is an integer number (44928).

2^1051155 is an apocalyptic number.

1051155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1051155 is an abundant number, since it is smaller than the sum of its proper divisors (1105389).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051155 is a wasteful number, since it uses less digits than its factorization.

1051155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 133 counting only the distinct ones).

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

The square root of 1051155 is about 1025.2585039881. The cubic root of 1051155 is about 101.6768898914.

Adding to 1051155 its reverse (5511501), we get a palindrome (6562656).

The spelling of 1051155 in words is "one million, fifty-one thousand, one hundred fifty-five".