1532213131 has 2 divisors, whose sum is σ = 1532213132. Its totient is φ = 1532213130.

The previous prime is 1532213129. The next prime is 1532213141. The reversal of 1532213131 is 1313122351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1532213131 - 2¹ = 1532213129 is a prime.

It is a super-2 number, since 2×1532213131² = 4695354157617646322, which contains 22 as substring.

Together with 1532213129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1532213101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766106565 + 766106566.

It is an arithmetic number, because the mean of its divisors is an integer number (766106566).

Almost surely, 2^1532213131 is an apocalyptic number.

1532213131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532213131 is an equidigital number, since it uses as much as digits as its factorization.

1532213131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 22.

The square root of 1532213131 is about 39143.4941082168. The cubic root of 1532213131 is about 1152.8506797330.

Adding to 1532213131 its reverse (1313122351), we get a palindrome (2845335482).

The spelling of 1532213131 in words is "one billion, five hundred thirty-two million, two hundred thirteen thousand, one hundred thirty-one".