61842061 has 4 divisors (see below), whose sum is σ = 61879324. Its totient is φ = 61804800.

The previous prime is 61842049. The next prime is 61842071. The reversal of 61842061 is 16024816.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20304036 + 41538025 = 4506^2 + 6445^2 .

It is a cyclic number.

It is not a de Polignac number, because 61842061 - 2⁵ = 61842029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61842031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16020 + ... + 19501.

It is an arithmetic number, because the mean of its divisors is an integer number (15469831).

Almost surely, 2^61842061 is an apocalyptic number.

It is an amenable number.

61842061 is a deficient number, since it is larger than the sum of its proper divisors (37263).

61842061 is a wasteful number, since it uses less digits than its factorization.

61842061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37262.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 61842061 is about 7863.9723422708. The cubic root of 61842061 is about 395.4527969928.

Adding to 61842061 its reverse (16024816), we get a palindrome (77866877).

The spelling of 61842061 in words is "sixty-one million, eight hundred forty-two thousand, sixty-one".