61148712 has 32 divisors (see below), whose sum is σ = 156602880. Its totient is φ = 19885440.

The previous prime is 61148701. The next prime is 61148713. The reversal of 61148712 is 21784116.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61148712.

It is not an unprimeable number, because it can be changed into a prime (61148713) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 30088 + ... + 32055.

It is an arithmetic number, because the mean of its divisors is an integer number (4893840).

Almost surely, 2^61148712 is an apocalyptic number.

It is an amenable number.

61148712 is an abundant number, since it is smaller than the sum of its proper divisors (95454168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61148712 is a wasteful number, since it uses less digits than its factorization.

61148712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62193 (or 62189 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 61148712 is about 7819.7641908180. The cubic root of 61148712 is about 393.9693518036.

The spelling of 61148712 in words is "sixty-one million, one hundred forty-eight thousand, seven hundred twelve".