61044309 has 12 divisors (see below), whose sum is σ = 89417952. Its totient is φ = 40122600.

The previous prime is 61044307. The next prime is 61044311. The reversal of 61044309 is 90344016.

61044309 is a `hidden beast` number, since 610 + 4 + 43 + 0 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (61044307) and next prime (61044311).

It is not a de Polignac number, because 61044309 - 2¹ = 61044307 is a prime.

It is a super-2 number, since 2×61044309² = 7452815322574962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61044307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47127 + ... + 48404.

It is an arithmetic number, because the mean of its divisors is an integer number (7451496).

Almost surely, 2^61044309 is an apocalyptic number.

It is an amenable number.

61044309 is a deficient number, since it is larger than the sum of its proper divisors (28373643).

61044309 is a wasteful number, since it uses less digits than its factorization.

61044309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95608 (or 95605 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61044309 is about 7813.0857540411. The cubic root of 61044309 is about 393.7450079488.

The spelling of 61044309 in words is "sixty-one million, forty-four thousand, three hundred nine".