61371 has 8 divisors (see below), whose sum is σ = 90960. Its totient is φ = 40896.

The previous prime is 61363. The next prime is 61379. The reversal of 61371 is 17316.

It is an interprime number because it is at equal distance from previous prime (61363) and next prime (61379).

It is not a de Polignac number, because 61371 - 2³ = 61363 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (61379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (11370).

2⁶¹³⁷¹ is an apocalyptic number.

61371 is a deficient number, since it is larger than the sum of its proper divisors (29589).

61371 is a wasteful number, since it uses less digits than its factorization.

61371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282 (or 2276 counting only the distinct ones).

The product of its digits is 126, while the sum is 18.

The square root of 61371 is about 247.7317097184. The cubic root of 61371 is about 39.4446160734. Note that the first 3 decimals are identical.

Adding to 61371 its reverse (17316), we get a palindrome (78687).

The spelling of 61371 in words is "sixty-one thousand, three hundred seventy-one".