1040143253 has 4 divisors (see below), whose sum is σ = 1043424780. Its totient is φ = 1036861728.

The previous prime is 1040143243. The next prime is 1040143259. The reversal of 1040143253 is 3523410401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 527483089 + 512660164 = 22967^2 + 22642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040143253 - 2⁸ = 1040142997 is a prime.

It is a super-4 number, since 4×1040143253⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040143259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640288 + ... + 1640921.

It is an arithmetic number, because the mean of its divisors is an integer number (260856195).

Almost surely, 2^1040143253 is an apocalyptic number.

It is an amenable number.

1040143253 is a deficient number, since it is larger than the sum of its proper divisors (3281527).

1040143253 is an equidigital number, since it uses as much as digits as its factorization.

1040143253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281526.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1040143253 is about 32251.2519601953. The cubic root of 1040143253 is about 1013.2059203140.

Adding to 1040143253 its reverse (3523410401), we get a palindrome (4563553654).

The spelling of 1040143253 in words is "one billion, forty million, one hundred forty-three thousand, two hundred fifty-three".