61137241 has 4 divisors (see below), whose sum is σ = 66695184. Its totient is φ = 55579300.

The previous prime is 61137227. The next prime is 61137259. The reversal of 61137241 is 14273116.

61137241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61137241 - 2⁷ = 61137113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61137211) 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 in 3 ways as a sum of consecutive naturals, for example, 2778955 + ... + 2778976.

It is an arithmetic number, because the mean of its divisors is an integer number (16673796).

Almost surely, 2^61137241 is an apocalyptic number.

It is an amenable number.

61137241 is a deficient number, since it is larger than the sum of its proper divisors (5557943).

61137241 is a wasteful number, since it uses less digits than its factorization.

61137241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5557942.

The product of its digits is 1008, while the sum is 25.

The square root of 61137241 is about 7819.0306944020. The cubic root of 61137241 is about 393.9447151165.

The spelling of 61137241 in words is "sixty-one million, one hundred thirty-seven thousand, two hundred forty-one".