1145409553 has 8 divisors (see below), whose sum is σ = 1167566400. Its totient is φ = 1123273008.

The previous prime is 1145409521. The next prime is 1145409557. The reversal of 1145409553 is 3559045411.

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 1145409553 - 2⁵ = 1145409521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145409557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159678 + ... + 166696.

It is an arithmetic number, because the mean of its divisors is an integer number (145945800).

Almost surely, 2^1145409553 is an apocalyptic number.

It is an amenable number.

1145409553 is a deficient number, since it is larger than the sum of its proper divisors (22156847).

1145409553 is an equidigital number, since it uses as much as digits as its factorization.

1145409553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 1145409553 is about 33843.8997900656. The cubic root of 1145409553 is about 1046.2936758492.

The spelling of 1145409553 in words is "one billion, one hundred forty-five million, four hundred nine thousand, five hundred fifty-three".