61012319 has 2 divisors, whose sum is σ = 61012320. Its totient is φ = 61012318.

The previous prime is 61012229. The next prime is 61012339. The reversal of 61012319 is 91321016.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61012319 - 2¹⁶ = 60946783 is a prime.

It is a super-2 number, since 2×61012319² = 7445006139515522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61012294 and 61012303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61012339) 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, 30506159 + 30506160.

It is an arithmetic number, because the mean of its divisors is an integer number (30506160).

Almost surely, 2^61012319 is an apocalyptic number.

61012319 is a deficient number, since it is larger than the sum of its proper divisors (1).

61012319 is an equidigital number, since it uses as much as digits as its factorization.

61012319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 61012319 is about 7811.0382792558. The cubic root of 61012319 is about 393.6762158210.

The spelling of 61012319 in words is "sixty-one million, twelve thousand, three hundred nineteen".