61169045 has 16 divisors (see below), whose sum is σ = 86596608. Its totient is φ = 40590720.

The previous prime is 61169041. The next prime is 61169051. The reversal of 61169045 is 54096116.

It is not a de Polignac number, because 61169045 - 2² = 61169041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61169041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27104 + ... + 29273.

It is an arithmetic number, because the mean of its divisors is an integer number (5412288).

Almost surely, 2^61169045 is an apocalyptic number.

It is an amenable number.

61169045 is a deficient number, since it is larger than the sum of its proper divisors (25427563).

61169045 is a wasteful number, since it uses less digits than its factorization.

61169045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56420.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 61169045 is about 7821.0641859021. The cubic root of 61169045 is about 394.0130141630.

The spelling of 61169045 in words is "sixty-one million, one hundred sixty-nine thousand, forty-five".