61361474 has 4 divisors (see below), whose sum is σ = 92042214. Its totient is φ = 30680736.

The previous prime is 61361471. The next prime is 61361497. The reversal of 61361474 is 47416316.

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., 38254225 + 23107249 = 6185^2 + 4807^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61361474.

It is not an unprimeable number, because it can be changed into a prime (61361471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15340367 + ... + 15340370.

Almost surely, 2^61361474 is an apocalyptic number.

61361474 is a deficient number, since it is larger than the sum of its proper divisors (30680740).

61361474 is a wasteful number, since it uses less digits than its factorization.

61361474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30680739.

The product of its digits is 12096, while the sum is 32.

The square root of 61361474 is about 7833.3564964197. The cubic root of 61361474 is about 394.4257510475.

The spelling of 61361474 in words is "sixty-one million, three hundred sixty-one thousand, four hundred seventy-four".