61011061 has 2 divisors, whose sum is σ = 61011062. Its totient is φ = 61011060.

The previous prime is 61011053. The next prime is 61011077. The reversal of 61011061 is 16011016.

It is an a-pointer prime, because the next prime (61011077) can be obtained adding 61011061 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48094225 + 12916836 = 6935^2 + 3594^2 .

It is a cyclic number.

It is not a de Polignac number, because 61011061 - 2³ = 61011053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61011091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505530 + 30505531.

It is an arithmetic number, because the mean of its divisors is an integer number (30505531).

Almost surely, 2^61011061 is an apocalyptic number.

It is an amenable number.

61011061 is a deficient number, since it is larger than the sum of its proper divisors (1).

61011061 is an equidigital number, since it uses as much as digits as its factorization.

61011061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 61011061 is about 7810.9577517741. The cubic root of 61011061 is about 393.6735100937.

Adding to 61011061 its reverse (16011016), we get a palindrome (77022077).

The spelling of 61011061 in words is "sixty-one million, eleven thousand, sixty-one".