61473219 has 4 divisors (see below), whose sum is σ = 81964296. Its totient is φ = 40982144.

The previous prime is 61473199. The next prime is 61473239. The reversal of 61473219 is 91237416.

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

It is an interprime number because it is at equal distance from previous prime (61473199) and next prime (61473239).

It is a cyclic number.

It is not a de Polignac number, because 61473219 - 2⁸ = 61472963 is a prime.

It is a super-2 number, since 2×61473219² = 7557913308443922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61473219.

It is not an unprimeable number, because it can be changed into a prime (61473239) 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 in 3 ways as a sum of consecutive naturals, for example, 10245534 + ... + 10245539.

It is an arithmetic number, because the mean of its divisors is an integer number (20491074).

Almost surely, 2^61473219 is an apocalyptic number.

61473219 is a deficient number, since it is larger than the sum of its proper divisors (20491077).

61473219 is a wasteful number, since it uses less digits than its factorization.

61473219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20491076.

The product of its digits is 9072, while the sum is 33.

The square root of 61473219 is about 7840.4858905555. The cubic root of 61473219 is about 394.6650346172.

The spelling of 61473219 in words is "sixty-one million, four hundred seventy-three thousand, two hundred nineteen".