1432121 has 4 divisors (see below), whose sum is σ = 1436532. Its totient is φ = 1427712.

The previous prime is 1432111. The next prime is 1432129. The reversal of 1432121 is 1212341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1212341 = 13 ⋅93257.

It can be written as a sum of positive squares in 2 ways, for example, as 657721 + 774400 = 811^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 1432121 - 2¹⁰ = 1431097 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1432096 and 1432105.

It is not an unprimeable number, because it can be changed into a prime (1432129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676 + ... + 2381.

It is an arithmetic number, because the mean of its divisors is an integer number (359133).

2^1432121 is an apocalyptic number.

It is an amenable number.

1432121 is a deficient number, since it is larger than the sum of its proper divisors (4411).

1432121 is an equidigital number, since it uses as much as digits as its factorization.

1432121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410.

The product of its digits is 48, while the sum is 14.

The square root of 1432121 is about 1196.7125803634. The cubic root of 1432121 is about 112.7179904972.

Adding to 1432121 its reverse (1212341), we get a palindrome (2644462).

It can be divided in two parts, 143 and 2121, that multiplied together give a palindrome (303303).

The spelling of 1432121 in words is "one million, four hundred thirty-two thousand, one hundred twenty-one".