34261561 has 2 divisors, whose sum is σ = 34261562. Its totient is φ = 34261560.

The previous prime is 34261531. The next prime is 34261567. The reversal of 34261561 is 16516243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32490000 + 1771561 = 5700^2 + 1331^2 .

It is a cyclic number.

It is not a de Polignac number, because 34261561 - 2¹³ = 34253369 is a prime.

It is not a weakly prime, because it can be changed into another prime (34261567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17130780 + 17130781.

It is an arithmetic number, because the mean of its divisors is an integer number (17130781).

Almost surely, 2^34261561 is an apocalyptic number.

It is an amenable number.

34261561 is a deficient number, since it is larger than the sum of its proper divisors (1).

34261561 is an equidigital number, since it uses as much as digits as its factorization.

34261561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 34261561 is about 5853.3375949111. The cubic root of 34261561 is about 324.7898001733.

The spelling of 34261561 in words is "thirty-four million, two hundred sixty-one thousand, five hundred sixty-one".