61774546 has 4 divisors (see below), whose sum is σ = 92661822. Its totient is φ = 30887272.

The previous prime is 61774507. The next prime is 61774597. The reversal of 61774546 is 64547716.

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

It can be written as a sum of positive squares in only one way, i.e., 40513225 + 21261321 = 6365^2 + 4611^2 .

It is a super-2 number, since 2×61774546² = 7632189067012232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 61774499 and 61774508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15443635 + ... + 15443638.

Almost surely, 2^61774546 is an apocalyptic number.

61774546 is a deficient number, since it is larger than the sum of its proper divisors (30887276).

61774546 is a wasteful number, since it uses less digits than its factorization.

61774546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30887275.

The product of its digits is 141120, while the sum is 40.

The square root of 61774546 is about 7859.6784921522. The cubic root of 61774546 is about 395.3088350080.

The spelling of 61774546 in words is "sixty-one million, seven hundred seventy-four thousand, five hundred forty-six".