61610429 has 2 divisors, whose sum is σ = 61610430. Its totient is φ = 61610428.

The previous prime is 61610401. The next prime is 61610473. The reversal of 61610429 is 92401616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59136100 + 2474329 = 7690^2 + 1573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61610429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61610489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30805214 + 30805215.

It is an arithmetic number, because the mean of its divisors is an integer number (30805215).

Almost surely, 2^61610429 is an apocalyptic number.

It is an amenable number.

61610429 is a deficient number, since it is larger than the sum of its proper divisors (1).

61610429 is an equidigital number, since it uses as much as digits as its factorization.

61610429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 61610429 is about 7849.2311088412. The cubic root of 61610429 is about 394.9584510055.

The spelling of 61610429 in words is "sixty-one million, six hundred ten thousand, four hundred twenty-nine".