61010113 has 4 divisors (see below), whose sum is σ = 63113940. Its totient is φ = 58906288.

The previous prime is 61010111. The next prime is 61010119. The reversal of 61010113 is 31101016.

It is a happy number.

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 27751824 + 33258289 = 5268^2 + 5767^2 .

It is a cyclic number.

It is not a de Polignac number, because 61010113 - 2¹ = 61010111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61010093 and 61010102.

It is not an unprimeable number, because it can be changed into a prime (61010111) 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, 1051870 + ... + 1051927.

It is an arithmetic number, because the mean of its divisors is an integer number (15778485).

Almost surely, 2^61010113 is an apocalyptic number.

It is an amenable number.

61010113 is a deficient number, since it is larger than the sum of its proper divisors (2103827).

61010113 is a wasteful number, since it uses less digits than its factorization.

61010113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103826.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 61010113 is about 7810.8970675589. The cubic root of 61010113 is about 393.6714710950.

Adding to 61010113 its reverse (31101016), we get a palindrome (92111129).

The spelling of 61010113 in words is "sixty-one million, ten thousand, one hundred thirteen".