1045138 has 4 divisors (see below), whose sum is σ = 1567710. Its totient is φ = 522568.

The previous prime is 1045129. The next prime is 1045151. The reversal of 1045138 is 8315401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8315401 = 59 ⋅140939.

It can be written as a sum of positive squares in only one way, i.e., 700569 + 344569 = 837^2 + 587^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261283 + ... + 261286.

2^1045138 is an apocalyptic number.

1045138 is a deficient number, since it is larger than the sum of its proper divisors (522572).

1045138 is an equidigital number, since it uses as much as digits as its factorization.

1045138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522571.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1045138 is about 1022.3199107911. The cubic root of 1045138 is about 101.4825129426.

The spelling of 1045138 in words is "one million, forty-five thousand, one hundred thirty-eight".