61015429 has 2 divisors, whose sum is σ = 61015430. Its totient is φ = 61015428.

The previous prime is 61015411. The next prime is 61015453. The reversal of 61015429 is 92451016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47983329 + 13032100 = 6927^2 + 3610^2 .

It is a cyclic number.

It is not a de Polignac number, because 61015429 - 2²⁵ = 27460997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61015397 and 61015406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61015469) 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, 30507714 + 30507715.

It is an arithmetic number, because the mean of its divisors is an integer number (30507715).

Almost surely, 2^61015429 is an apocalyptic number.

It is an amenable number.

61015429 is a deficient number, since it is larger than the sum of its proper divisors (1).

61015429 is an equidigital number, since it uses as much as digits as its factorization.

61015429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 61015429 is about 7811.2373539664. The cubic root of 61015429 is about 393.6829047009.

The spelling of 61015429 in words is "sixty-one million, fifteen thousand, four hundred twenty-nine".