1532343121 has 2 divisors, whose sum is σ = 1532343122. Its totient is φ = 1532343120.

The previous prime is 1532343101. The next prime is 1532343133. The reversal of 1532343121 is 1213432351.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1446965521 + 85377600 = 38039^2 + 9240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1532343121 - 2²⁵ = 1498788689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1532343101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766171560 + 766171561.

It is an arithmetic number, because the mean of its divisors is an integer number (766171561).

Almost surely, 2^1532343121 is an apocalyptic number.

It is an amenable number.

1532343121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532343121 is an equidigital number, since it uses as much as digits as its factorization.

1532343121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 1532343121 is about 39145.1545021858. The cubic root of 1532343121 is about 1152.8832806854.

Adding to 1532343121 its reverse (1213432351), we get a palindrome (2745775472).

The spelling of 1532343121 in words is "one billion, five hundred thirty-two million, three hundred forty-three thousand, one hundred twenty-one".