61013571 has 8 divisors (see below), whose sum is σ = 81452880. Its totient is φ = 40624992.

The previous prime is 61013551. The next prime is 61013581. The reversal of 61013571 is 17531016.

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

It is not a de Polignac number, because 61013571 - 2⁹ = 61013059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61013501) 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, 9780 + ... + 14753.

It is an arithmetic number, because the mean of its divisors is an integer number (10181610).

Almost surely, 2^61013571 is an apocalyptic number.

61013571 is a deficient number, since it is larger than the sum of its proper divisors (20439309).

61013571 is a wasteful number, since it uses less digits than its factorization.

61013571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25365.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 61013571 is about 7811.1184218395. The cubic root of 61013571 is about 393.6789086064.

Adding to 61013571 its reverse (17531016), we get a palindrome (78544587).

The spelling of 61013571 in words is "sixty-one million, thirteen thousand, five hundred seventy-one".