61120905 has 16 divisors (see below), whose sum is σ = 97911744. Its totient is φ = 32558400.

The previous prime is 61120903. The next prime is 61120907. The reversal of 61120905 is 50902116.

It is an interprime number because it is at equal distance from previous prime (61120903) and next prime (61120907).

It is not a de Polignac number, because 61120905 - 2¹ = 61120903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61120903) 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 15 ways as a sum of consecutive naturals, for example, 13827 + ... + 17703.

It is an arithmetic number, because the mean of its divisors is an integer number (6119484).

Almost surely, 2^61120905 is an apocalyptic number.

It is an amenable number.

61120905 is a deficient number, since it is larger than the sum of its proper divisors (36790839).

61120905 is a wasteful number, since it uses less digits than its factorization.

61120905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 61120905 is about 7817.9859938478. The cubic root of 61120905 is about 393.9096243707.

The spelling of 61120905 in words is "sixty-one million, one hundred twenty thousand, nine hundred five".