61315045 has 16 divisors (see below), whose sum is σ = 80441280. Its totient is φ = 44496000.

The previous prime is 61315013. The next prime is 61315069. The reversal of 61315045 is 54051316.

It is not a de Polignac number, because 61315045 - 2⁵ = 61315013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33145 + ... + 34945.

It is an arithmetic number, because the mean of its divisors is an integer number (5027580).

Almost surely, 2^61315045 is an apocalyptic number.

It is an amenable number.

61315045 is a deficient number, since it is larger than the sum of its proper divisors (19126235).

61315045 is a wasteful number, since it uses less digits than its factorization.

61315045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 61315045 is about 7830.3923911896. The cubic root of 61315045 is about 394.3262455396.

The spelling of 61315045 in words is "sixty-one million, three hundred fifteen thousand, forty-five".