61008545 has 16 divisors (see below), whose sum is σ = 79630992. Its totient is φ = 44601600.

The previous prime is 61008517. The next prime is 61008553. The reversal of 61008545 is 54580016.

It is a happy number.

61008545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3066001 + 57942544 = 1751^2 + 7612^2 .

It is not a de Polignac number, because 61008545 - 2⁸ = 61008289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1919 + ... + 11211.

It is an arithmetic number, because the mean of its divisors is an integer number (4976937).

Almost surely, 2^61008545 is an apocalyptic number.

61008545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61008545 is a deficient number, since it is larger than the sum of its proper divisors (18622447).

61008545 is a wasteful number, since it uses less digits than its factorization.

61008545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9412.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 61008545 is about 7810.7966943200. The cubic root of 61008545 is about 393.6680985276.

The spelling of 61008545 in words is "sixty-one million, eight thousand, five hundred forty-five".