61040481 has 8 divisors (see below), whose sum is σ = 81514560. Its totient is φ = 40630032.

The previous prime is 61040479. The next prime is 61040509. The reversal of 61040481 is 18404016.

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

It is not a de Polignac number, because 61040481 - 2¹ = 61040479 is a prime.

It is a super-2 number, since 2×61040481² = 7451880641422722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61040381) 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, 13621 + ... + 17538.

It is an arithmetic number, because the mean of its divisors is an integer number (10189320).

Almost surely, 2^61040481 is an apocalyptic number.

It is an amenable number.

61040481 is a deficient number, since it is larger than the sum of its proper divisors (20474079).

61040481 is a wasteful number, since it uses less digits than its factorization.

61040481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31815.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 61040481 is about 7812.8407765678. The cubic root of 61040481 is about 393.7367773841.

Adding to 61040481 its reverse (18404016), we get a palindrome (79444497).

The spelling of 61040481 in words is "sixty-one million, forty thousand, four hundred eighty-one".