1536401 has 2 divisors, whose sum is σ = 1536402. Its totient is φ = 1536400.

The previous prime is 1536389. The next prime is 1536439. The reversal of 1536401 is 1046351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1324801 + 211600 = 1151^2 + 460^2 .

It is an emirp because it is prime and its reverse (1046351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1536401 - 2¹⁰ = 1535377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1533401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 768200 + 768201.

It is an arithmetic number, because the mean of its divisors is an integer number (768201).

2^1536401 is an apocalyptic number.

It is an amenable number.

1536401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1536401 is an equidigital number, since it uses as much as digits as its factorization.

1536401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1536401 is about 1239.5164379709. The cubic root of 1536401 is about 115.3900054120.

The spelling of 1536401 in words is "one million, five hundred thirty-six thousand, four hundred one".