1145277 has 30 divisors (see below), whose sum is σ = 1966302. Its totient is φ = 642096.

The previous prime is 1145269. The next prime is 1145281. The reversal of 1145277 is 7725411.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 86436 = 1029^2 + 294^2 .

It is not a de Polignac number, because 1145277 - 2³ = 1145269 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1145277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 21583 + ... + 21635.

2^1145277 is an apocalyptic number.

It is an amenable number.

1145277 is a deficient number, since it is larger than the sum of its proper divisors (821025).

1145277 is an frugal number, since it uses more digits than its factorization.

1145277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 63 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 1145277 is about 1070.1761537242. The cubic root of 1145277 is about 104.6253313368.

The spelling of 1145277 in words is "one million, one hundred forty-five thousand, two hundred seventy-seven".