61452115229 has 2 divisors, whose sum is σ = 61452115230. Its totient is φ = 61452115228.

The previous prime is 61452115177. The next prime is 61452115243. The reversal of 61452115229 is 92251125416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56016002329 + 5436112900 = 236677^2 + 73730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61452115229 is a prime.

It is a super-2 number, since 2×61452115229² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61452115192 and 61452115201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61452115289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30726057614 + 30726057615.

It is an arithmetic number, because the mean of its divisors is an integer number (30726057615).

Almost surely, 2^61452115229 is an apocalyptic number.

It is an amenable number.

61452115229 is a deficient number, since it is larger than the sum of its proper divisors (1).

61452115229 is an equidigital number, since it uses as much as digits as its factorization.

61452115229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The spelling of 61452115229 in words is "sixty-one billion, four hundred fifty-two million, one hundred fifteen thousand, two hundred twenty-nine".