1040143252 has 12 divisors (see below), whose sum is σ = 1821374100. Its totient is φ = 519750656.

The previous prime is 1040143243. The next prime is 1040143259. The reversal of 1040143252 is 2523410401.

It can be written as a sum of positive squares in 2 ways, for example, as 18957316 + 1021185936 = 4354^2 + 31956^2 .

It is a super-2 number, since 2×1040143252² = 2163795969362271008, which contains 22 as substring.

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, 72877 + ... + 85972.

It is an arithmetic number, because the mean of its divisors is an integer number (151781175).

Almost surely, 2^1040143252 is an apocalyptic number.

It is an amenable number.

1040143252 is a deficient number, since it is larger than the sum of its proper divisors (781230848).

1040143252 is a wasteful number, since it uses less digits than its factorization.

1040143252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160490 (or 160488 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1040143252 is about 32251.2519446920. The cubic root of 1040143252 is about 1013.2059199893.

Adding to 1040143252 its reverse (2523410401), we get a palindrome (3563553653).

The spelling of 1040143252 in words is "one billion, forty million, one hundred forty-three thousand, two hundred fifty-two".