61263029 has 2 divisors, whose sum is σ = 61263030. Its totient is φ = 61263028.

The previous prime is 61263017. The next prime is 61263031. The reversal of 61263029 is 92036216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51868804 + 9394225 = 7202^2 + 3065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61263029 is a prime.

It is a Sophie Germain prime.

Together with 61263031, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61262992 and 61263010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61263079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30631514 + 30631515.

It is an arithmetic number, because the mean of its divisors is an integer number (30631515).

Almost surely, 2^61263029 is an apocalyptic number.

It is an amenable number.

61263029 is a deficient number, since it is larger than the sum of its proper divisors (1).

61263029 is an equidigital number, since it uses as much as digits as its factorization.

61263029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 61263029 is about 7827.0702692642. The cubic root of 61263029 is about 394.2147064282.

The spelling of 61263029 in words is "sixty-one million, two hundred sixty-three thousand, twenty-nine".