1145542 has 16 divisors (see below), whose sum is σ = 1784592. Its totient is φ = 551200.

The previous prime is 1145539. The next prime is 1145593. The reversal of 1145542 is 2455411.

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 7 ways as a sum of consecutive naturals, for example, 10653 + ... + 10759.

It is an arithmetic number, because the mean of its divisors is an integer number (111537).

2^1145542 is an apocalyptic number.

1145542 is a deficient number, since it is larger than the sum of its proper divisors (639050).

1145542 is a wasteful number, since it uses less digits than its factorization.

1145542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263.

The product of its digits is 800, while the sum is 22.

The square root of 1145542 is about 1070.2999579557. The cubic root of 1145542 is about 104.6334002944.

The spelling of 1145542 in words is "one million, one hundred forty-five thousand, five hundred forty-two".