1140531445 has 8 divisors (see below), whose sum is σ = 1449145944. Its totient is φ = 858753024.

The previous prime is 1140531437. The next prime is 1140531451. The reversal of 1140531445 is 5441350411.

It can be written as a sum of positive squares in 4 ways, for example, as 273935601 + 866595844 = 16551^2 + 29438^2 .

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 1140531445 - 2³ = 1140531437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6708924 + ... + 6709093.

It is an arithmetic number, because the mean of its divisors is an integer number (181143243).

Almost surely, 2^1140531445 is an apocalyptic number.

It is an amenable number.

1140531445 is a deficient number, since it is larger than the sum of its proper divisors (308614499).

1140531445 is a wasteful number, since it uses less digits than its factorization.

1140531445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13418039.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1140531445 is about 33771.7551365042. The cubic root of 1140531445 is about 1044.8062322446.

Adding to 1140531445 its reverse (5441350411), we get a palindrome (6581881856).

The spelling of 1140531445 in words is "one billion, one hundred forty million, five hundred thirty-one thousand, four hundred forty-five".