1252540323 has 24 divisors (see below), whose sum is σ = 1865859840. Its totient is φ = 809287920.

The previous prime is 1252540321. The next prime is 1252540327. The reversal of 1252540323 is 3230452521.

It is a happy number.

1252540323 is a `hidden beast` number, since 1 + 252 + 5 + 403 + 2 + 3 = 666.

It is not a de Polignac number, because 1252540323 - 2¹ = 1252540321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252540321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21090 + ... + 54312.

It is an arithmetic number, because the mean of its divisors is an integer number (77744160).

Almost surely, 2^1252540323 is an apocalyptic number.

1252540323 is a deficient number, since it is larger than the sum of its proper divisors (613319517).

1252540323 is a wasteful number, since it uses less digits than its factorization.

1252540323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33359 (or 33356 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1252540323 is about 35391.2464177231. The cubic root of 1252540323 is about 1077.9465792407.

Adding to 1252540323 its reverse (3230452521), we get a palindrome (4482992844).

The spelling of 1252540323 in words is "one billion, two hundred fifty-two million, five hundred forty thousand, three hundred twenty-three".