61151271 has 8 divisors (see below), whose sum is σ = 81751680. Its totient is φ = 40659192.

The previous prime is 61151263. The next prime is 61151281. The reversal of 61151271 is 17215116.

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

It is not a de Polignac number, because 61151271 - 2³ = 61151263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61151221) 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, 25755 + ... + 28028.

It is an arithmetic number, because the mean of its divisors is an integer number (10218960).

Almost surely, 2^61151271 is an apocalyptic number.

61151271 is a deficient number, since it is larger than the sum of its proper divisors (20600409).

61151271 is a wasteful number, since it uses less digits than its factorization.

61151271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54165.

The product of its digits is 420, while the sum is 24.

The square root of 61151271 is about 7819.9278129661. The cubic root of 61151271 is about 393.9748474414.

Adding to 61151271 its reverse (17215116), we get a palindrome (78366387).

The spelling of 61151271 in words is "sixty-one million, one hundred fifty-one thousand, two hundred seventy-one".