61032131 has 2 divisors, whose sum is σ = 61032132. Its totient is φ = 61032130.

The previous prime is 61032089. The next prime is 61032143. The reversal of 61032131 is 13123016.

61032131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61032131 - 2¹⁸ = 60769987 is a prime.

It is a super-2 number, since 2×61032131² = 7449842028802322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61032031) 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, 30516065 + 30516066.

It is an arithmetic number, because the mean of its divisors is an integer number (30516066).

Almost surely, 2^61032131 is an apocalyptic number.

61032131 is a deficient number, since it is larger than the sum of its proper divisors (1).

61032131 is an equidigital number, since it uses as much as digits as its factorization.

61032131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 61032131 is about 7812.3063816008. The cubic root of 61032131 is about 393.7188228947.

Adding to 61032131 its reverse (13123016), we get a palindrome (74155147).

The spelling of 61032131 in words is "sixty-one million, thirty-two thousand, one hundred thirty-one".