1145242 has 16 divisors (see below), whose sum is σ = 1978560. Its totient is φ = 487008.

The previous prime is 1145227. The next prime is 1145269. The reversal of 1145242 is 2425411.

It is a plaindrome in base 16.

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, 2278 + ... + 2734.

It is an arithmetic number, because the mean of its divisors is an integer number (123660).

2^1145242 is an apocalyptic number.

1145242 is a deficient number, since it is larger than the sum of its proper divisors (833318).

1145242 is a wasteful number, since it uses less digits than its factorization.

1145242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its digits is 320, while the sum is 19.

The square root of 1145242 is about 1070.1598011512. The cubic root of 1145242 is about 104.6242655323.

It can be divided in two parts, 114 and 5242, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 1145242 in words is "one million, one hundred forty-five thousand, two hundred forty-two".