61102481 has 16 divisors (see below), whose sum is σ = 68335488. Its totient is φ = 54163200.

The previous prime is 61102463. The next prime is 61102487. The reversal of 61102481 is 18420116.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61102481 is a prime.

It is a super-2 number, since 2×61102481² = 7467026368710722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61102487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181145 + ... + 181481.

It is an arithmetic number, because the mean of its divisors is an integer number (4270968).

Almost surely, 2^61102481 is an apocalyptic number.

It is an amenable number.

61102481 is a deficient number, since it is larger than the sum of its proper divisors (7233007).

61102481 is a wasteful number, since it uses less digits than its factorization.

61102481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 61102481 is about 7816.8075964552. The cubic root of 61102481 is about 393.8700409677.

Adding to 61102481 its reverse (18420116), we get a palindrome (79522597).

The spelling of 61102481 in words is "sixty-one million, one hundred two thousand, four hundred eighty-one".