61334531 has 2 divisors, whose sum is σ = 61334532. Its totient is φ = 61334530.

The previous prime is 61334519. The next prime is 61334549. The reversal of 61334531 is 13543316.

61334531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61334531 - 2⁶ = 61334467 is a prime.

It is a super-2 number, since 2×61334531² = 7523849385979922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61334531.

It is not a weakly prime, because it can be changed into another prime (61334501) 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, 30667265 + 30667266.

It is an arithmetic number, because the mean of its divisors is an integer number (30667266).

Almost surely, 2^61334531 is an apocalyptic number.

61334531 is a deficient number, since it is larger than the sum of its proper divisors (1).

61334531 is an equidigital number, since it uses as much as digits as its factorization.

61334531 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 61334531 is about 7831.6365467251. The cubic root of 61334531 is about 394.3680135776.

Adding to 61334531 its reverse (13543316), we get a palindrome (74877847).

The spelling of 61334531 in words is "sixty-one million, three hundred thirty-four thousand, five hundred thirty-one".