1045155 has 8 divisors (see below), whose sum is σ = 1672272. Its totient is φ = 557408.

The previous prime is 1045153. The next prime is 1045157. The reversal of 1045155 is 5515401.

It is an interprime number because it is at equal distance from previous prime (1045153) and next prime (1045157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1045155 - 2¹ = 1045153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34824 + ... + 34853.

It is an arithmetic number, because the mean of its divisors is an integer number (209034).

2^1045155 is an apocalyptic number.

1045155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1045155 is a deficient number, since it is larger than the sum of its proper divisors (627117).

1045155 is an equidigital number, since it uses as much as digits as its factorization.

1045155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69685.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1045155 is about 1022.3282251802. The cubic root of 1045155 is about 101.4830631709.

The spelling of 1045155 in words is "one million, forty-five thousand, one hundred fifty-five".