1632121 has 2 divisors, whose sum is σ = 1632122. Its totient is φ = 1632120.

The previous prime is 1632109. The next prime is 1632133. The reversal of 1632121 is 1212361.

It is a balanced prime because it is at equal distance from previous prime (1632109) and next prime (1632133).

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 44521 = 1260^2 + 211^2 .

It is an emirp because it is prime and its reverse (1212361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1632121 - 2¹³ = 1623929 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1632095 and 1632104.

It is not a weakly prime, because it can be changed into another prime (1632101) 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, 816060 + 816061.

It is an arithmetic number, because the mean of its divisors is an integer number (816061).

2^1632121 is an apocalyptic number.

It is an amenable number.

1632121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1632121 is an equidigital number, since it uses as much as digits as its factorization.

1632121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 16.

The square root of 1632121 is about 1277.5449111479. The cubic root of 1632121 is about 117.7382159823.

Adding to 1632121 its reverse (1212361), we get a palindrome (2844482).

The spelling of 1632121 in words is "one million, six hundred thirty-two thousand, one hundred twenty-one".