61330171 has 4 divisors (see below), whose sum is σ = 70091632. Its totient is φ = 52568712.

The previous prime is 61330151. The next prime is 61330177. The reversal of 61330171 is 17103316.

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

It is a de Polignac number, because none of the positive numbers 2^k-61330171 is a prime.

It is a super-2 number, since 2×61330171² = 7522779749778482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61330177) 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, 4380720 + ... + 4380733.

It is an arithmetic number, because the mean of its divisors is an integer number (17522908).

Almost surely, 2^61330171 is an apocalyptic number.

61330171 is a deficient number, since it is larger than the sum of its proper divisors (8761461).

61330171 is an equidigital number, since it uses as much as digits as its factorization.

61330171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8761460.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 61330171 is about 7831.3581836103. The cubic root of 61330171 is about 394.3586687313.

Adding to 61330171 its reverse (17103316), we get a palindrome (78433487).

The spelling of 61330171 in words is "sixty-one million, three hundred thirty thousand, one hundred seventy-one".