61040774 has 4 divisors (see below), whose sum is σ = 91561164. Its totient is φ = 30520386.

The previous prime is 61040753. The next prime is 61040783. The reversal of 61040774 is 47704016.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15260192 + ... + 15260195.

It is an arithmetic number, because the mean of its divisors is an integer number (22890291).

Almost surely, 2^61040774 is an apocalyptic number.

61040774 is a deficient number, since it is larger than the sum of its proper divisors (30520390).

61040774 is a wasteful number, since it uses less digits than its factorization.

61040774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30520389.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 61040774 is about 7812.8595277273. The cubic root of 61040774 is about 393.7374073742.

The spelling of 61040774 in words is "sixty-one million, forty thousand, seven hundred seventy-four".