61746161 has 4 divisors (see below), whose sum is σ = 61767024. Its totient is φ = 61725300.

The previous prime is 61746149. The next prime is 61746187. The reversal of 61746161 is 16164716.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61746161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61746661) 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, 5075 + ... + 12216.

It is an arithmetic number, because the mean of its divisors is an integer number (15441756).

Almost surely, 2^61746161 is an apocalyptic number.

It is an amenable number.

61746161 is a deficient number, since it is larger than the sum of its proper divisors (20863).

61746161 is a wasteful number, since it uses less digits than its factorization.

61746161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20862.

The product of its digits is 6048, while the sum is 32.

The square root of 61746161 is about 7857.8725492337. The cubic root of 61746161 is about 395.2482784569.

The spelling of 61746161 in words is "sixty-one million, seven hundred forty-six thousand, one hundred sixty-one".