61273241 has 4 divisors (see below), whose sum is σ = 61339572. Its totient is φ = 61206912.

The previous prime is 61273217. The next prime is 61273243. The reversal of 61273241 is 14237216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5621641 + 55651600 = 2371^2 + 7460^2 .

It is a cyclic number.

It is not a de Polignac number, because 61273241 - 2¹⁰ = 61272217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61273241.

It is not an unprimeable number, because it can be changed into a prime (61273243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31760 + ... + 33633.

It is an arithmetic number, because the mean of its divisors is an integer number (15334893).

Almost surely, 2^61273241 is an apocalyptic number.

It is an amenable number.

61273241 is a deficient number, since it is larger than the sum of its proper divisors (66331).

61273241 is an equidigital number, since it uses as much as digits as its factorization.

61273241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66330.

The product of its digits is 2016, while the sum is 26.

The square root of 61273241 is about 7827.7225934495. The cubic root of 61273241 is about 394.2366092353.

The spelling of 61273241 in words is "sixty-one million, two hundred seventy-three thousand, two hundred forty-one".