61406271 has 12 divisors (see below), whose sum is σ = 93366520. Its totient is φ = 38782800.

The previous prime is 61406263. The next prime is 61406281. The reversal of 61406271 is 17260416.

It is not a de Polignac number, because 61406271 - 2³ = 61406263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61406221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179380 + ... + 179721.

Almost surely, 2^61406271 is an apocalyptic number.

61406271 is a deficient number, since it is larger than the sum of its proper divisors (31960249).

61406271 is a wasteful number, since it uses less digits than its factorization.

61406271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359126 (or 359123 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 61406271 is about 7836.2153492614. The cubic root of 61406271 is about 394.5217113256.

Adding to 61406271 its reverse (17260416), we get a palindrome (78666687).

The spelling of 61406271 in words is "sixty-one million, four hundred six thousand, two hundred seventy-one".