1145042 has 4 divisors (see below), whose sum is σ = 1717566. Its totient is φ = 572520.

The previous prime is 1145021. The next prime is 1145057. The reversal of 1145042 is 2405411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2405411 = 431 ⋅5581.

It can be written as a sum of positive squares in only one way, i.e., 1125721 + 19321 = 1061^2 + 139^2 .

It is a super-2 number, since 2×1145042² = 2622242363528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1145042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286259 + ... + 286262.

2^1145042 is an apocalyptic number.

1145042 is a deficient number, since it is larger than the sum of its proper divisors (572524).

1145042 is an equidigital number, since it uses as much as digits as its factorization.

1145042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572523.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1145042 is about 1070.0663530828. The cubic root of 1145042 is about 104.6181748047.

The spelling of 1145042 in words is "one million, one hundred forty-five thousand, forty-two".