61869163 has 4 divisors (see below), whose sum is σ = 62436880. Its totient is φ = 61301448.

The previous prime is 61869139. The next prime is 61869169. The reversal of 61869163 is 36196816.

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

It is a cyclic number.

It is not a de Polignac number, because 61869163 - 2¹³ = 61860971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61869169) 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, 283695 + ... + 283912.

It is an arithmetic number, because the mean of its divisors is an integer number (15609220).

Almost surely, 2^61869163 is an apocalyptic number.

61869163 is a deficient number, since it is larger than the sum of its proper divisors (567717).

61869163 is a wasteful number, since it uses less digits than its factorization.

61869163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567716.

The product of its digits is 46656, while the sum is 40.

The square root of 61869163 is about 7865.6953284500. The cubic root of 61869163 is about 395.5105570150.

The spelling of 61869163 in words is "sixty-one million, eight hundred sixty-nine thousand, one hundred sixty-three".