1040155 has 8 divisors (see below), whose sum is σ = 1314000. Its totient is φ = 788256.

The previous prime is 1040153. The next prime is 1040159. The reversal of 1040155 is 5510401.

It is a happy number.

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 1040155 - 2¹ = 1040153 is a prime.

It is an Ulam number.

1040155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1040153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5380 + ... + 5569.

It is an arithmetic number, because the mean of its divisors is an integer number (164250).

2^1040155 is an apocalyptic number.

1040155 is a deficient number, since it is larger than the sum of its proper divisors (273845).

1040155 is a wasteful number, since it uses less digits than its factorization.

1040155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10973.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1040155 is about 1019.8798948896. The cubic root of 1040155 is about 101.3209734559.

Adding to 1040155 its reverse (5510401), we get a palindrome (6550556).

The spelling of 1040155 in words is "one million, forty thousand, one hundred fifty-five".