1042155 has 12 divisors (see below), whose sum is σ = 1806480. Its totient is φ = 555792.

The previous prime is 1042141. The next prime is 1042183. The reversal of 1042155 is 5512401.

It is not a de Polignac number, because 1042155 - 2⁵ = 1042123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11535 + ... + 11624.

It is an arithmetic number, because the mean of its divisors is an integer number (150540).

2^1042155 is an apocalyptic number.

1042155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1042155 is a deficient number, since it is larger than the sum of its proper divisors (764325).

1042155 is a wasteful number, since it uses less digits than its factorization.

1042155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23170 (or 23167 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1042155 is about 1020.8599316263. The cubic root of 1042155 is about 101.3858715420.

Adding to 1042155 its reverse (5512401), we get a palindrome (6554556).

The spelling of 1042155 in words is "one million, forty-two thousand, one hundred fifty-five".