61332445 has 8 divisors (see below), whose sum is σ = 74250936. Its totient is φ = 48631296.

The previous prime is 61332407. The next prime is 61332451. The reversal of 61332445 is 54423316.

It can be written as a sum of positive squares in 4 ways, for example, as 39204 + 61293241 = 198^2 + 7829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61332445 - 2⁷ = 61332317 is a prime.

It is a super-3 number, since 3×61332445³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53712 + ... + 54841.

It is an arithmetic number, because the mean of its divisors is an integer number (9281367).

Almost surely, 2^61332445 is an apocalyptic number.

It is an amenable number.

61332445 is a deficient number, since it is larger than the sum of its proper divisors (12918491).

61332445 is a wasteful number, since it uses less digits than its factorization.

61332445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108671.

The product of its digits is 8640, while the sum is 28.

The square root of 61332445 is about 7831.5033678088. The cubic root of 61332445 is about 394.3635426812.

The spelling of 61332445 in words is "sixty-one million, three hundred thirty-two thousand, four hundred forty-five".