1145146 has 4 divisors (see below), whose sum is σ = 1717722. Its totient is φ = 572572.

The previous prime is 1145143. The next prime is 1145173. The reversal of 1145146 is 6415411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 114921 = 1015^2 + 339^2 .

It is a super-2 number, since 2×1145146² = 2622718722632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145141) 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 as a sum of consecutive naturals, namely, 286285 + ... + 286288.

2^1145146 is an apocalyptic number.

1145146 is a deficient number, since it is larger than the sum of its proper divisors (572576).

1145146 is an equidigital number, since it uses as much as digits as its factorization.

1145146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572575.

The product of its digits is 480, while the sum is 22.

The square root of 1145146 is about 1070.1149470968. The cubic root of 1145146 is about 104.6213420716.

The spelling of 1145146 in words is "one million, one hundred forty-five thousand, one hundred forty-six".