1040155311 has 8 divisors (see below), whose sum is σ = 1493556400. Its totient is φ = 640095552.

The previous prime is 1040155283. The next prime is 1040155313. The reversal of 1040155311 is 1135510401.

It is a happy number.

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

It is not a de Polignac number, because 1040155311 - 2⁵ = 1040155279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040155313) 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, 13335286 + ... + 13335363.

It is an arithmetic number, because the mean of its divisors is an integer number (186694550).

Almost surely, 2^1040155311 is an apocalyptic number.

1040155311 is a deficient number, since it is larger than the sum of its proper divisors (453401089).

1040155311 is a wasteful number, since it uses less digits than its factorization.

1040155311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26670665.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1040155311 is about 32251.4388981329. The cubic root of 1040155311 is about 1013.2098355406.

Adding to 1040155311 its reverse (1135510401), we get a palindrome (2175665712).

The spelling of 1040155311 in words is "one billion, forty million, one hundred fifty-five thousand, three hundred eleven".