61158030 has 32 divisors (see below), whose sum is σ = 147027744. Its totient is φ = 16281216.

The previous prime is 61158029. The next prime is 61158037. The reversal of 61158030 is 3085116.

61158030 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 (61158037) 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 15 ways as a sum of consecutive naturals, for example, 21364 + ... + 24056.

It is an arithmetic number, because the mean of its divisors is an integer number (4594617).

Almost surely, 2^61158030 is an apocalyptic number.

61158030 is an abundant number, since it is smaller than the sum of its proper divisors (85869714).

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

61158030 is a wasteful number, since it uses less digits than its factorization.

61158030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 61158030 is about 7820.3599661397. The cubic root of 61158030 is about 393.9893621459.

The spelling of 61158030 in words is "sixty-one million, one hundred fifty-eight thousand, thirty".