1145445 has 16 divisors (see below), whose sum is σ = 2094720. Its totient is φ = 523584.

The previous prime is 1145429. The next prime is 1145461. The reversal of 1145445 is 5445411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1145429) and next prime (1145461).

It is not a de Polignac number, because 1145445 - 2⁴ = 1145429 is a prime.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 5350 + ... + 5559.

It is an arithmetic number, because the mean of its divisors is an integer number (130920).

2^1145445 is an apocalyptic number.

1145445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145445 is a deficient number, since it is larger than the sum of its proper divisors (949275).

1145445 is a wasteful number, since it uses less digits than its factorization.

1145445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10924.

The product of its digits is 1600, while the sum is 24.

The square root of 1145445 is about 1070.2546425968. The cubic root of 1145445 is about 104.6304468958.

The spelling of 1145445 in words is "one million, one hundred forty-five thousand, four hundred forty-five".