1534889 has 2 divisors, whose sum is σ = 1534890. Its totient is φ = 1534888.

The previous prime is 1534873. The next prime is 1534901. The reversal of 1534889 is 9884351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1459264 + 75625 = 1208^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 1534889 - 2⁴ = 1534873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1534189) 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, 767444 + 767445.

It is an arithmetic number, because the mean of its divisors is an integer number (767445).

2^1534889 is an apocalyptic number.

It is an amenable number.

1534889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1534889 is an equidigital number, since it uses as much as digits as its factorization.

1534889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 1534889 is about 1238.9063725722. The cubic root of 1534889 is about 115.3521405247.

It can be divided in two parts, 1534 and 889, that multiplied together give a triangular number (1363726 = T₁₆₅₁).

The spelling of 1534889 in words is "one million, five hundred thirty-four thousand, eight hundred eighty-nine".