1045042 has 4 divisors (see below), whose sum is σ = 1567566. Its totient is φ = 522520.

The previous prime is 1045027. The next prime is 1045043. The reversal of 1045042 is 2405401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2405401 = 983 ⋅2447.

It can be written as a sum of positive squares in only one way, i.e., 1042441 + 2601 = 1021^2 + 51^2 .

It is a super-2 number, since 2×1045042² = 2184225563528, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1045043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261259 + ... + 261262.

2^1045042 is an apocalyptic number.

1045042 is a deficient number, since it is larger than the sum of its proper divisors (522524).

1045042 is an equidigital number, since it uses as much as digits as its factorization.

1045042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522523.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1045042 is about 1022.2729576781. The cubic root of 1045042 is about 101.4794056593.

The spelling of 1045042 in words is "one million, forty-five thousand, forty-two".