61363161 has 12 divisors (see below), whose sum is σ = 88735920. Its totient is φ = 40862520.

The previous prime is 61363157. The next prime is 61363189. The reversal of 61363161 is 16136316.

It is a happy number.

It is not a de Polignac number, because 61363161 - 2² = 61363157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61363061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5826 + ... + 12516.

It is an arithmetic number, because the mean of its divisors is an integer number (7394660).

Almost surely, 2^61363161 is an apocalyptic number.

It is an amenable number.

61363161 is a deficient number, since it is larger than the sum of its proper divisors (27372759).

61363161 is a wasteful number, since it uses less digits than its factorization.

61363161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7716 (or 7713 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 61363161 is about 7833.4641762122. The cubic root of 61363161 is about 394.4293656399.

Adding to 61363161 its reverse (16136316), we get a palindrome (77499477).

The spelling of 61363161 in words is "sixty-one million, three hundred sixty-three thousand, one hundred sixty-one".