61045867 has 4 divisors (see below), whose sum is σ = 61063096. Its totient is φ = 61028640.

The previous prime is 61045849. The next prime is 61045889. The reversal of 61045867 is 76854016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61045867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61045807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (15265774).

Almost surely, 2^61045867 is an apocalyptic number.

61045867 is a deficient number, since it is larger than the sum of its proper divisors (17229).

61045867 is a wasteful number, since it uses less digits than its factorization.

61045867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17228.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 61045867 is about 7813.1854579294. The cubic root of 61045867 is about 393.7483576987.

The spelling of 61045867 in words is "sixty-one million, forty-five thousand, eight hundred sixty-seven".