61061671 has 32 divisors (see below), whose sum is σ = 73763136. Its totient is φ = 49920000.

The previous prime is 61061659. The next prime is 61061683. The reversal of 61061671 is 17616016.

It is an interprime number because it is at equal distance from previous prime (61061659) and next prime (61061683).

It is a cyclic number.

It is not a de Polignac number, because 61061671 - 2¹⁷ = 60930599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 604521 + ... + 604621.

It is an arithmetic number, because the mean of its divisors is an integer number (2305098).

Almost surely, 2^61061671 is an apocalyptic number.

61061671 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

61061671 is a deficient number, since it is larger than the sum of its proper divisors (12701465).

61061671 is a wasteful number, since it uses less digits than its factorization.

61061671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 61061671 is about 7814.1967597444. The cubic root of 61061671 is about 393.7823335840.

Adding to 61061671 its reverse (17616016), we get a palindrome (78677687).

It can be divided in two parts, 6106 and 1671, that added together give a palindrome (7777).

The spelling of 61061671 in words is "sixty-one million, sixty-one thousand, six hundred seventy-one".