113411561 has 2 divisors, whose sum is σ = 113411562. Its totient is φ = 113411560.

The previous prime is 113411533. The next prime is 113411567. The reversal of 113411561 is 165114311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60762025 + 52649536 = 7795^2 + 7256^2 .

It is a cyclic number.

It is not a de Polignac number, because 113411561 - 2⁶ = 113411497 is a prime.

It is not a weakly prime, because it can be changed into another prime (113411567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56705780 + 56705781.

It is an arithmetic number, because the mean of its divisors is an integer number (56705781).

Almost surely, 2^113411561 is an apocalyptic number.

It is an amenable number.

113411561 is a deficient number, since it is larger than the sum of its proper divisors (1).

113411561 is an equidigital number, since it uses as much as digits as its factorization.

113411561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 23.

The square root of 113411561 is about 10649.4864195416. The cubic root of 113411561 is about 484.0450419685.

Adding to 113411561 its reverse (165114311), we get a palindrome (278525872).

The spelling of 113411561 in words is "one hundred thirteen million, four hundred eleven thousand, five hundred sixty-one".