1145986 has 4 divisors (see below), whose sum is σ = 1718982. Its totient is φ = 572992.

The previous prime is 1145983. The next prime is 1145999. The reversal of 1145986 is 6895411.

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., 938961 + 207025 = 969^2 + 455^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1145983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286495 + ... + 286498.

2^1145986 is an apocalyptic number.

1145986 is a deficient number, since it is larger than the sum of its proper divisors (572996).

1145986 is an equidigital number, since it uses as much as digits as its factorization.

1145986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572995.

The product of its digits is 8640, while the sum is 34.

The square root of 1145986 is about 1070.5073563502. The cubic root of 1145986 is about 104.6469168158.

The spelling of 1145986 in words is "one million, one hundred forty-five thousand, nine hundred eighty-six".