1145554 has 4 divisors (see below), whose sum is σ = 1718334. Its totient is φ = 572776.

The previous prime is 1145539. The next prime is 1145593. The reversal of 1145554 is 4555411.

It is a happy number.

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., 859329 + 286225 = 927^2 + 535^2 .

It is an unprimeable number.

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, 286387 + ... + 286390.

2^1145554 is an apocalyptic number.

1145554 is a deficient number, since it is larger than the sum of its proper divisors (572780).

1145554 is an equidigital number, since it uses as much as digits as its factorization.

1145554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572779.

The product of its digits is 2000, while the sum is 25.

The square root of 1145554 is about 1070.3055638461. The cubic root of 1145554 is about 104.6337656517.

The spelling of 1145554 in words is "one million, one hundred forty-five thousand, five hundred fifty-four".