61019474 has 4 divisors (see below), whose sum is σ = 91529214. Its totient is φ = 30509736.

The previous prime is 61019473. The next prime is 61019479. The reversal of 61019474 is 47491016.

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., 60949249 + 70225 = 7807^2 + 265^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61019474.

It is not an unprimeable number, because it can be changed into a prime (61019473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15254867 + ... + 15254870.

Almost surely, 2^61019474 is an apocalyptic number.

61019474 is a deficient number, since it is larger than the sum of its proper divisors (30509740).

61019474 is a wasteful number, since it uses less digits than its factorization.

61019474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30509739.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 61019474 is about 7811.4962715219. The cubic root of 61019474 is about 393.6916042063.

The spelling of 61019474 in words is "sixty-one million, nineteen thousand, four hundred seventy-four".