61130245 has 16 divisors (see below), whose sum is σ = 80180352. Its totient is φ = 44372160.

The previous prime is 61130227. The next prime is 61130257. The reversal of 61130245 is 54203116.

It is not a de Polignac number, because 61130245 - 2¹⁷ = 60999173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46264 + ... + 47566.

It is an arithmetic number, because the mean of its divisors is an integer number (5011272).

Almost surely, 2^61130245 is an apocalyptic number.

It is an amenable number.

61130245 is a deficient number, since it is larger than the sum of its proper divisors (19050107).

61130245 is a wasteful number, since it uses less digits than its factorization.

61130245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 61130245 is about 7818.5833115725. The cubic root of 61130245 is about 393.9296880380.

The spelling of 61130245 in words is "sixty-one million, one hundred thirty thousand, two hundred forty-five".