1541867 has 2 divisors, whose sum is σ = 1541868. Its totient is φ = 1541866.

The previous prime is 1541863. The next prime is 1541873. The reversal of 1541867 is 7681451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1541867 - 2² = 1541863 is a prime.

It is not a weakly prime, because it can be changed into another prime (1541863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770933 + 770934.

It is an arithmetic number, because the mean of its divisors is an integer number (770934).

2^1541867 is an apocalyptic number.

1541867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1541867 is an equidigital number, since it uses as much as digits as its factorization.

1541867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 1541867 is about 1241.7193724832. The cubic root of 1541867 is about 115.5266831151.

The spelling of 1541867 in words is "one million, five hundred forty-one thousand, eight hundred sixty-seven".