1240315573 has 16 divisors (see below), whose sum is σ = 1493550720. Its totient is φ = 1006200576.

The previous prime is 1240315567. The next prime is 1240315577. The reversal of 1240315573 is 3755130421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1240315573 - 2⁵ = 1240315541 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 (1240315577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154761 + ... + 162577.

It is an arithmetic number, because the mean of its divisors is an integer number (93346920).

Almost surely, 2^1240315573 is an apocalyptic number.

It is an amenable number.

1240315573 is a deficient number, since it is larger than the sum of its proper divisors (253235147).

1240315573 is a wasteful number, since it uses less digits than its factorization.

1240315573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9036.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 1240315573 is about 35218.1142737654. The cubic root of 1240315573 is about 1074.4282008320.

Adding to 1240315573 its reverse (3755130421), we get a palindrome (4995445994).

The spelling of 1240315573 in words is "one billion, two hundred forty million, three hundred fifteen thousand, five hundred seventy-three".