63309161 has 8 divisors (see below), whose sum is σ = 65455104. Its totient is φ = 61169760.

The previous prime is 63309149. The next prime is 63309187. The reversal of 63309161 is 16190336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63309161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63309101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25376 + ... + 27758.

It is an arithmetic number, because the mean of its divisors is an integer number (8181888).

Almost surely, 2^63309161 is an apocalyptic number.

It is an amenable number.

63309161 is a deficient number, since it is larger than the sum of its proper divisors (2145943).

63309161 is a wasteful number, since it uses less digits than its factorization.

63309161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 63309161 is about 7956.7054111611. The cubic root of 63309161 is about 398.5555422164. Note that the first 4 decimals are identical.

Adding to 63309161 its reverse (16190336), we get a palindrome (79499497).

The spelling of 63309161 in words is "sixty-three million, three hundred nine thousand, one hundred sixty-one".