1040551291 has 16 divisors (see below), whose sum is σ = 1162294560. Its totient is φ = 924940800.

The previous prime is 1040551247. The next prime is 1040551307. The reversal of 1040551291 is 1921550401.

It is a cyclic number.

It is not a de Polignac number, because 1040551291 - 2⁹ = 1040550779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040551241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147736 + ... + 154618.

It is an arithmetic number, because the mean of its divisors is an integer number (72643410).

Almost surely, 2^1040551291 is an apocalyptic number.

1040551291 is a deficient number, since it is larger than the sum of its proper divisors (121743269).

1040551291 is a wasteful number, since it uses less digits than its factorization.

1040551291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1040551291 is about 32257.5772648846. The cubic root of 1040551291 is about 1013.3383932424.

The spelling of 1040551291 in words is "one billion, forty million, five hundred fifty-one thousand, two hundred ninety-one".