1040129533 has 8 divisors (see below), whose sum is σ = 1094297400. Its totient is φ = 987333120.

The previous prime is 1040129527. The next prime is 1040129539. The reversal of 1040129533 is 3359210401.

It is an interprime number because it is at equal distance from previous prime (1040129527) and next prime (1040129539).

It can be written as a sum of positive squares in 4 ways, for example, as 840889 + 1039288644 = 917^2 + 32238^2 .

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 1040129533 - 2⁵ = 1040129501 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 (1040129539) 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, 341308 + ... + 344341.

It is an arithmetic number, because the mean of its divisors is an integer number (136787175).

Almost surely, 2^1040129533 is an apocalyptic number.

It is an amenable number.

1040129533 is a deficient number, since it is larger than the sum of its proper divisors (54167867).

1040129533 is an equidigital number, since it uses as much as digits as its factorization.

1040129533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685727.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1040129533 is about 32251.0392545729. The cubic root of 1040129533 is about 1013.2014653999.

Adding to 1040129533 its reverse (3359210401), we get a palindrome (4399339934).

The spelling of 1040129533 in words is "one billion, forty million, one hundred twenty-nine thousand, five hundred thirty-three".