61458361 has 2 divisors, whose sum is σ = 61458362. Its totient is φ = 61458360.

The previous prime is 61458347. The next prime is 61458367. The reversal of 61458361 is 16385416.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59768361 + 1690000 = 7731^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 61458361 - 2⁹ = 61457849 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (61458367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30729180 + 30729181.

It is an arithmetic number, because the mean of its divisors is an integer number (30729181).

Almost surely, 2^61458361 is an apocalyptic number.

It is an amenable number.

61458361 is a deficient number, since it is larger than the sum of its proper divisors (1).

61458361 is an equidigital number, since it uses as much as digits as its factorization.

61458361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 61458361 is about 7839.5383154877. The cubic root of 61458361 is about 394.6332353737.

The spelling of 61458361 in words is "sixty-one million, four hundred fifty-eight thousand, three hundred sixty-one".