61770041 has 4 divisors (see below), whose sum is σ = 61792500. Its totient is φ = 61747584.

The previous prime is 61770013. The next prime is 61770053. The reversal of 61770041 is 14007716.

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 42445225 + 19324816 = 6515^2 + 4396^2 .

It is a cyclic number.

It is not a de Polignac number, because 61770041 - 2¹⁰ = 61769017 is a prime.

It is a deceptive number, since it divides R_61770040.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61770091) 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, 6416 + ... + 12833.

It is an arithmetic number, because the mean of its divisors is an integer number (15448125).

Almost surely, 2^61770041 is an apocalyptic number.

It is an amenable number.

61770041 is a deficient number, since it is larger than the sum of its proper divisors (22459).

61770041 is a wasteful number, since it uses less digits than its factorization.

61770041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22458.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 61770041 is about 7859.3918975961. The cubic root of 61770041 is about 395.2992252808.

Adding to 61770041 its reverse (14007716), we get a palindrome (75777757).

The spelling of 61770041 in words is "sixty-one million, seven hundred seventy thousand, forty-one".