61342529 has 4 divisors (see below), whose sum is σ = 61681620. Its totient is φ = 61003440.

The previous prime is 61342517. The next prime is 61342531. The reversal of 61342529 is 92524316.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3810304 + 57532225 = 1952^2 + 7585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61342529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61342495 and 61342504.

It is not an unprimeable number, because it can be changed into a prime (61342549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169274 + ... + 169635.

It is an arithmetic number, because the mean of its divisors is an integer number (15420405).

Almost surely, 2^61342529 is an apocalyptic number.

It is an amenable number.

61342529 is a deficient number, since it is larger than the sum of its proper divisors (339091).

61342529 is a wasteful number, since it uses less digits than its factorization.

61342529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339090.

The product of its digits is 12960, while the sum is 32.

The square root of 61342529 is about 7832.1471513245. The cubic root of 61342529 is about 394.3851546466.

The spelling of 61342529 in words is "sixty-one million, three hundred forty-two thousand, five hundred twenty-nine".