61612481 has 8 divisors (see below), whose sum is σ = 70507584. Its totient is φ = 52740720.

The previous prime is 61612457. The next prime is 61612483. The reversal of 61612481 is 18421616.

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

It is a cyclic number.

It is not a de Polignac number, because 61612481 - 2¹⁴ = 61596097 is a prime.

It is a super-2 number, since 2×61612481² = 7592195629950722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61612483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251 + ... + 11103.

It is an arithmetic number, because the mean of its divisors is an integer number (8813448).

Almost surely, 2^61612481 is an apocalyptic number.

It is an amenable number.

61612481 is a deficient number, since it is larger than the sum of its proper divisors (8895103).

61612481 is a wasteful number, since it uses less digits than its factorization.

61612481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11671.

The product of its digits is 2304, while the sum is 29.

The square root of 61612481 is about 7849.3618211929. The cubic root of 61612481 is about 394.9628357920.

The spelling of 61612481 in words is "sixty-one million, six hundred twelve thousand, four hundred eighty-one".