61243571 has 8 divisors (see below), whose sum is σ = 64945440. Its totient is φ = 57552768.

The previous prime is 61243519. The next prime is 61243579. The reversal of 61243571 is 17534216.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61243571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61243579) 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, 10490 + ... + 15248.

It is an arithmetic number, because the mean of its divisors is an integer number (8118180).

Almost surely, 2^61243571 is an apocalyptic number.

61243571 is a deficient number, since it is larger than the sum of its proper divisors (3701869).

61243571 is a wasteful number, since it uses less digits than its factorization.

61243571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5533.

The product of its digits is 5040, while the sum is 29.

The square root of 61243571 is about 7825.8271767271. The cubic root of 61243571 is about 394.1729659629.

Adding to 61243571 its reverse (17534216), we get a palindrome (78777787).

The spelling of 61243571 in words is "sixty-one million, two hundred forty-three thousand, five hundred seventy-one".