1145958 has 32 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 341760.

The previous prime is 1145899. The next prime is 1145971. The reversal of 1145958 is 8595411.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

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, 6313 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2^1145958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270080).

1145958 is an abundant number, since it is smaller than the sum of its proper divisors (1394202).

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

1145958 is a wasteful number, since it uses less digits than its factorization.

1145958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292.

The product of its digits is 7200, while the sum is 33.

The square root of 1145958 is about 1070.4942783593. The cubic root of 1145958 is about 104.6460645257.

The spelling of 1145958 in words is "one million, one hundred forty-five thousand, nine hundred fifty-eight".