61473130 has 16 divisors (see below), whose sum is σ = 111632904. Its totient is φ = 24371200.

The previous prime is 61473119. The next prime is 61473131. The reversal of 61473130 is 3137416.

It can be written as a sum of positive squares in 4 ways, for example, as 37197801 + 24275329 = 6099^2 + 4927^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61473095 and 61473104.

It is not an unprimeable number, because it can be changed into a prime (61473131) 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 7 ways as a sum of consecutive naturals, for example, 26071 + ... + 28330.

Almost surely, 2^61473130 is an apocalyptic number.

61473130 is a deficient number, since it is larger than the sum of its proper divisors (50159774).

61473130 is a wasteful number, since it uses less digits than its factorization.

61473130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54521.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 61473130 is about 7840.4802148848. The cubic root of 61473130 is about 394.6648441537.

The spelling of 61473130 in words is "sixty-one million, four hundred seventy-three thousand, one hundred thirty".