1654043 has 2 divisors, whose sum is σ = 1654044. Its totient is φ = 1654042.

The previous prime is 1654039. The next prime is 1654057. The reversal of 1654043 is 3404561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1654043 - 2² = 1654039 is a prime.

It is a Sophie Germain prime.

It is equal to p₁₂₄₉₂₅ and since 1654043 and 124925 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1654013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827021 + 827022.

It is an arithmetic number, because the mean of its divisors is an integer number (827022).

2^1654043 is an apocalyptic number.

1654043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1654043 is an equidigital number, since it uses as much as digits as its factorization.

1654043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1654043 is about 1286.0960306291. The cubic root of 1654043 is about 118.2630109628.

The spelling of 1654043 in words is "one million, six hundred fifty-four thousand, forty-three".