126532331 has 2 divisors, whose sum is σ = 126532332. Its totient is φ = 126532330.

The previous prime is 126532327. The next prime is 126532337. The reversal of 126532331 is 133235621.

It is a weak prime.

It is an emirp because it is prime and its reverse (133235621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126532331 - 2² = 126532327 is a prime.

It is a super-2 number, since 2×126532331² = 32020861576587122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126532331.

It is not a weakly prime, because it can be changed into another prime (126532337) 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, 63266165 + 63266166.

It is an arithmetic number, because the mean of its divisors is an integer number (63266166).

Almost surely, 2^126532331 is an apocalyptic number.

126532331 is a deficient number, since it is larger than the sum of its proper divisors (1).

126532331 is an equidigital number, since it uses as much as digits as its factorization.

126532331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 126532331 is about 11248.6590756410. The cubic root of 126532331 is about 502.0348158157.

Adding to 126532331 its reverse (133235621), we get a palindrome (259767952).

The spelling of 126532331 in words is "one hundred twenty-six million, five hundred thirty-two thousand, three hundred thirty-one".