1145127 has 8 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 760760.

The previous prime is 1145107. The next prime is 1145129. The reversal of 1145127 is 7215411.

It is a happy number.

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 1145127 - 2¹⁰ = 1144103 is a prime.

It is a super-2 number, since 2×1145127² = 2622631692258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802 + ... + 1712.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

2^1145127 is an apocalyptic number.

1145127 is a deficient number, since it is larger than the sum of its proper divisors (387033).

1145127 is an equidigital number, since it uses as much as digits as its factorization.

1145127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its digits is 280, while the sum is 21.

The square root of 1145127 is about 1070.1060695090. The cubic root of 1145127 is about 104.6207634506.

The spelling of 1145127 in words is "one million, one hundred forty-five thousand, one hundred twenty-seven".