61305130 has 32 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 23268672.

The previous prime is 61305121. The next prime is 61305131. The reversal of 61305130 is 3150316.

It is a junction number, because it is equal to n+sod(n) for n = 61305098 and 61305107.

It is not an unprimeable number, because it can be changed into a prime (61305131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15319 + ... + 18901.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^61305130 is an apocalyptic number.

61305130 is a deficient number, since it is larger than the sum of its proper divisors (54816470).

61305130 is a wasteful number, since it uses less digits than its factorization.

61305130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 61305130 is about 7829.7592555582. The cubic root of 61305130 is about 394.3049894434.

Adding to 61305130 its reverse (3150316), we get a palindrome (64455446).

The spelling of 61305130 in words is "sixty-one million, three hundred five thousand, one hundred thirty".