1145658 has 16 divisors (see below), whose sum is σ = 2321280. Its totient is φ = 376896.

The previous prime is 1145623. The next prime is 1145659. The reversal of 1145658 is 8565411.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1145659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735 + ... + 1682.

It is an arithmetic number, because the mean of its divisors is an integer number (145080).

2^1145658 is an apocalyptic number.

1145658 is an abundant number, since it is smaller than the sum of its proper divisors (1175622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145658 is a wasteful number, since it uses less digits than its factorization.

1145658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501.

The product of its digits is 4800, while the sum is 30.

The square root of 1145658 is about 1070.3541470000. The cubic root of 1145658 is about 104.6369319748.

The spelling of 1145658 in words is "one million, one hundred forty-five thousand, six hundred fifty-eight".