61248913 has 16 divisors (see below), whose sum is σ = 70698240. Its totient is φ = 52477200.

The previous prime is 61248893. The next prime is 61248917. The reversal of 61248913 is 31984216.

61248913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61248913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61248917) 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 15 ways as a sum of consecutive naturals, for example, 46798 + ... + 48088.

It is an arithmetic number, because the mean of its divisors is an integer number (4418640).

Almost surely, 2^61248913 is an apocalyptic number.

It is an amenable number.

61248913 is a deficient number, since it is larger than the sum of its proper divisors (9449327).

61248913 is a wasteful number, since it uses less digits than its factorization.

61248913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548.

The product of its digits is 10368, while the sum is 34.

The square root of 61248913 is about 7826.1684750585. The cubic root of 61248913 is about 394.1844262720.

The spelling of 61248913 in words is "sixty-one million, two hundred forty-eight thousand, nine hundred thirteen".