61513958 has 16 divisors (see below), whose sum is σ = 100970064. Its totient is φ = 27874560.

The previous prime is 61513957. The next prime is 61513993. The reversal of 61513958 is 85931516.

61513958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61513957) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3266 + ... + 11562.

It is an arithmetic number, because the mean of its divisors is an integer number (6310629).

Almost surely, 2^61513958 is an apocalyptic number.

61513958 is a deficient number, since it is larger than the sum of its proper divisors (39456106).

61513958 is a wasteful number, since it uses less digits than its factorization.

61513958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8647.

The product of its digits is 32400, while the sum is 38.

The square root of 61513958 is about 7843.0834497664. The cubic root of 61513958 is about 394.7521983646.

The spelling of 61513958 in words is "sixty-one million, five hundred thirteen thousand, nine hundred fifty-eight".