61349641 has 2 divisors, whose sum is σ = 61349642. Its totient is φ = 61349640.

The previous prime is 61349623. The next prime is 61349647. The reversal of 61349641 is 14694316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58446025 + 2903616 = 7645^2 + 1704^2 .

It is a cyclic number.

It is not a de Polignac number, because 61349641 - 2⁷ = 61349513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61349597 and 61349606.

It is not a weakly prime, because it can be changed into another prime (61349647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30674820 + 30674821.

It is an arithmetic number, because the mean of its divisors is an integer number (30674821).

Almost surely, 2^61349641 is an apocalyptic number.

It is an amenable number.

61349641 is a deficient number, since it is larger than the sum of its proper divisors (1).

61349641 is an equidigital number, since it uses as much as digits as its factorization.

61349641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 61349641 is about 7832.6011643642. The cubic root of 61349641 is about 394.4003956160.

The spelling of 61349641 in words is "sixty-one million, three hundred forty-nine thousand, six hundred forty-one".