61701011 has 4 divisors (see below), whose sum is σ = 61842000. Its totient is φ = 61560024.

The previous prime is 61700983. The next prime is 61701043. The reversal of 61701011 is 11010716.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61701011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61701091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69836 + ... + 70713.

It is an arithmetic number, because the mean of its divisors is an integer number (15460500).

Almost surely, 2^61701011 is an apocalyptic number.

61701011 is a deficient number, since it is larger than the sum of its proper divisors (140989).

61701011 is a wasteful number, since it uses less digits than its factorization.

61701011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140988.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 61701011 is about 7854.9991088478. Note that the first 3 decimals coincide. The cubic root of 61701011 is about 395.1519172100.

Adding to 61701011 its reverse (11010716), we get a palindrome (72711727).

The spelling of 61701011 in words is "sixty-one million, seven hundred one thousand, eleven".