1145577 has 4 divisors (see below), whose sum is σ = 1527440. Its totient is φ = 763716.

The previous prime is 1145539. The next prime is 1145593. The reversal of 1145577 is 7755411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7755411 = 3 ⋅2585137.

It is not a de Polignac number, because 1145577 - 2¹¹ = 1143529 is a prime.

It is a D-number.

It is a Duffinian number.

1145577 is a lucky number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1145537) 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, 190927 + ... + 190932.

It is an arithmetic number, because the mean of its divisors is an integer number (381860).

2^1145577 is an apocalyptic number.

It is an amenable number.

1145577 is a deficient number, since it is larger than the sum of its proper divisors (381863).

1145577 is an equidigital number, since it uses as much as digits as its factorization.

1145577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381862.

The product of its digits is 4900, while the sum is 30.

The square root of 1145577 is about 1070.3163083874. The cubic root of 1145577 is about 104.6344659127.

The spelling of 1145577 in words is "one million, one hundred forty-five thousand, five hundred seventy-seven".