61510316 has 48 divisors (see below), whose sum is σ = 126584640. Its totient is φ = 25608960.

The previous prime is 61510283. The next prime is 61510381. The reversal of 61510316 is 61301516.

It is a happy number.

61510316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61510291 and 61510300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268490 + ... + 268718.

It is an arithmetic number, because the mean of its divisors is an integer number (2637180).

Almost surely, 2^61510316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61510316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63292320).

61510316 is an abundant number, since it is smaller than the sum of its proper divisors (65074324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61510316 is a wasteful number, since it uses less digits than its factorization.

61510316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 61510316 is about 7842.8512672369. The cubic root of 61510316 is about 394.7444076348.

The spelling of 61510316 in words is "sixty-one million, five hundred ten thousand, three hundred sixteen".