1145573617 has 4 divisors (see below), whose sum is σ = 1152601840. Its totient is φ = 1138545396.

The previous prime is 1145573609. The next prime is 1145573651. The reversal of 1145573617 is 7163755411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1145573617 - 2³ = 1145573609 is a prime.

It is a super-3 number, since 3×1145573617³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145573617.

It is not an unprimeable number, because it can be changed into a prime (1145573657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3513867 + ... + 3514192.

It is an arithmetic number, because the mean of its divisors is an integer number (288150460).

Almost surely, 2^1145573617 is an apocalyptic number.

It is an amenable number.

1145573617 is a deficient number, since it is larger than the sum of its proper divisors (7028223).

1145573617 is an equidigital number, since it uses as much as digits as its factorization.

1145573617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7028222.

The product of its digits is 88200, while the sum is 40.

The square root of 1145573617 is about 33846.3235374243. The cubic root of 1145573617 is about 1046.3436291403.

The spelling of 1145573617 in words is "one billion, one hundred forty-five million, five hundred seventy-three thousand, six hundred seventeen".