1040433121 has 18 divisors (see below), whose sum is σ = 1310571702. Its totient is φ = 823193280.

The previous prime is 1040433109. The next prime is 1040433139. The reversal of 1040433121 is 1213340401.

It can be written as a sum of positive squares in 3 ways, for example, as 36240400 + 1004192721 = 6020^2 + 31689^2 .

It is not a de Polignac number, because 1040433121 - 2¹⁵ = 1040400353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040433721) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 54540 + ... + 71101.

It is an arithmetic number, because the mean of its divisors is an integer number (72809539).

Almost surely, 2^1040433121 is an apocalyptic number.

It is an amenable number.

1040433121 is a deficient number, since it is larger than the sum of its proper divisors (270138581).

1040433121 is a wasteful number, since it uses less digits than its factorization.

1040433121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125681 (or 125661 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1040433121 is about 32255.7455502117. The cubic root of 1040433121 is about 1013.3000319326.

Adding to 1040433121 its reverse (1213340401), we get a palindrome (2253773522).

The spelling of 1040433121 in words is "one billion, forty million, four hundred thirty-three thousand, one hundred twenty-one".