61361437 has 2 divisors, whose sum is σ = 61361438. Its totient is φ = 61361436.

The previous prime is 61361423. The next prime is 61361471. The reversal of 61361437 is 73416316.

61361437 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 can be written as a sum of positive squares in only one way, i.e., 61136761 + 224676 = 7819^2 + 474^2 .

It is a cyclic number.

It is not a de Polignac number, because 61361437 - 2¹⁵ = 61328669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61361399 and 61361408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61361407) 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, 30680718 + 30680719.

It is an arithmetic number, because the mean of its divisors is an integer number (30680719).

Almost surely, 2^61361437 is an apocalyptic number.

It is an amenable number.

61361437 is a deficient number, since it is larger than the sum of its proper divisors (1).

61361437 is an equidigital number, since it uses as much as digits as its factorization.

61361437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 61361437 is about 7833.3541347242. The cubic root of 61361437 is about 394.4256717700.

The spelling of 61361437 in words is "sixty-one million, three hundred sixty-one thousand, four hundred thirty-seven".