1145532407 has 4 divisors (see below), whose sum is σ = 1167146280. Its totient is φ = 1123918536.

The previous prime is 1145532397. The next prime is 1145532463. The reversal of 1145532407 is 7042355411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145532407 - 2⁶ = 1145532343 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 (1145532107) 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 3 ways as a sum of consecutive naturals, for example, 10806857 + ... + 10806962.

It is an arithmetic number, because the mean of its divisors is an integer number (291786570).

Almost surely, 2^1145532407 is an apocalyptic number.

1145532407 is a deficient number, since it is larger than the sum of its proper divisors (21613873).

1145532407 is an equidigital number, since it uses as much as digits as its factorization.

1145532407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21613872.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1145532407 is about 33845.7147509105. The cubic root of 1145532407 is about 1046.3310821980.

Adding to 1145532407 its reverse (7042355411), we get a palindrome (8187887818).

The spelling of 1145532407 in words is "one billion, one hundred forty-five million, five hundred thirty-two thousand, four hundred seven".