1536121 has 2 divisors, whose sum is σ = 1536122. Its totient is φ = 1536120.

The previous prime is 1536107. The next prime is 1536133. The reversal of 1536121 is 1216351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837225 + 698896 = 915^2 + 836^2 .

It is an emirp because it is prime and its reverse (1216351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1536121 - 2⁹ = 1535609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1536191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 768060 + 768061.

It is an arithmetic number, because the mean of its divisors is an integer number (768061).

2^1536121 is an apocalyptic number.

It is an amenable number.

1536121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1536121 is an equidigital number, since it uses as much as digits as its factorization.

1536121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 19.

The square root of 1536121 is about 1239.4034855526. The cubic root of 1536121 is about 115.3829952707.

The spelling of 1536121 in words is "one million, five hundred thirty-six thousand, one hundred twenty-one".