61536158 has 8 divisors (see below), whose sum is σ = 97733952. Its totient is φ = 28958176.

The previous prime is 61536151. The next prime is 61536187. The reversal of 61536158 is 85163516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61536151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904910 + ... + 904977.

It is an arithmetic number, because the mean of its divisors is an integer number (12216744).

Almost surely, 2^61536158 is an apocalyptic number.

61536158 is a deficient number, since it is larger than the sum of its proper divisors (36197794).

61536158 is a wasteful number, since it uses less digits than its factorization.

61536158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809906.

The product of its digits is 21600, while the sum is 35.

The square root of 61536158 is about 7844.4985818088. The cubic root of 61536158 is about 394.7996805138.

The spelling of 61536158 in words is "sixty-one million, five hundred thirty-six thousand, one hundred fifty-eight".