61065774 has 48 divisors (see below), whose sum is σ = 164960640. Its totient is φ = 15860880.

The previous prime is 61065773. The next prime is 61065803. The reversal of 61065774 is 47756016.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61065773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20644 + ... + 23415.

It is an arithmetic number, because the mean of its divisors is an integer number (3436680).

Almost surely, 2^61065774 is an apocalyptic number.

61065774 is an abundant number, since it is smaller than the sum of its proper divisors (103894866).

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

61065774 is a wasteful number, since it uses less digits than its factorization.

61065774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44085 (or 44082 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 61065774 is about 7814.4592903156. The cubic root of 61065774 is about 393.7911533706.

The spelling of 61065774 in words is "sixty-one million, sixty-five thousand, seven hundred seventy-four".