63387161 has 8 divisors (see below), whose sum is σ = 64920960. Its totient is φ = 61861168.

The previous prime is 63387119. The next prime is 63387187. The reversal of 63387161 is 16178336.

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-63387161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63387661) 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, 16550 + ... + 20016.

It is an arithmetic number, because the mean of its divisors is an integer number (8115120).

Almost surely, 2^63387161 is an apocalyptic number.

It is an amenable number.

63387161 is a deficient number, since it is larger than the sum of its proper divisors (1533799).

63387161 is a wasteful number, since it uses less digits than its factorization.

63387161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903.

The product of its digits is 18144, while the sum is 35.

The square root of 63387161 is about 7961.6054285552. The cubic root of 63387161 is about 398.7191550516.

The spelling of 63387161 in words is "sixty-three million, three hundred eighty-seven thousand, one hundred sixty-one".