61146530 has 16 divisors (see below), whose sum is σ = 112406400. Its totient is φ = 23938032.

The previous prime is 61146509. The next prime is 61146557. The reversal of 61146530 is 3564116.

61146530 is nontrivially palindromic in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 61146530.

It is an unprimeable number.

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, 64580 + ... + 65519.

It is an arithmetic number, because the mean of its divisors is an integer number (7025400).

Almost surely, 2^61146530 is an apocalyptic number.

61146530 is a deficient number, since it is larger than the sum of its proper divisors (51259870).

61146530 is a wasteful number, since it uses less digits than its factorization.

61146530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130153.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61146530 is about 7819.6246712998. The cubic root of 61146530 is about 393.9646656796.

The spelling of 61146530 in words is "sixty-one million, one hundred forty-six thousand, five hundred thirty".