1047145 has 16 divisors (see below), whose sum is σ = 1393920. Its totient is φ = 748800.

The previous prime is 1047139. The next prime is 1047157. The reversal of 1047145 is 5417401.

It is not a de Polignac number, because 1047145 - 2¹³ = 1038953 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4225 + ... + 4465.

It is an arithmetic number, because the mean of its divisors is an integer number (87120).

2^1047145 is an apocalyptic number.

It is an amenable number.

1047145 is a deficient number, since it is larger than the sum of its proper divisors (346775).

1047145 is a wasteful number, since it uses less digits than its factorization.

1047145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1047145 is about 1023.3010309777. The cubic root of 1047145 is about 101.5474310582.

The spelling of 1047145 in words is "one million, forty-seven thousand, one hundred forty-five".