61229385 has 32 divisors (see below), whose sum is σ = 124404480. Its totient is φ = 27990144.

The previous prime is 61229347. The next prime is 61229401. The reversal of 61229385 is 58392216.

61229385 is a `hidden beast` number, since 612 + 2 + 9 + 38 + 5 = 666.

It is not a de Polignac number, because 61229385 - 2⁹ = 61228873 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31452 + ... + 33341.

It is an arithmetic number, because the mean of its divisors is an integer number (3887640).

Almost surely, 2^61229385 is an apocalyptic number.

It is an amenable number.

61229385 is an abundant number, since it is smaller than the sum of its proper divisors (63175095).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61229385 is a wasteful number, since it uses less digits than its factorization.

61229385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64814 (or 64808 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 61229385 is about 7824.9207663720. The cubic root of 61229385 is about 394.1425291927.

The spelling of 61229385 in words is "sixty-one million, two hundred twenty-nine thousand, three hundred eighty-five".