61530086 has 8 divisors (see below), whose sum is σ = 92345400. Its totient is φ = 30748288.

The previous prime is 61530067. The next prime is 61530121. The reversal of 61530086 is 68003516.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3131 + ... + 11526.

It is an arithmetic number, because the mean of its divisors is an integer number (11543175).

Almost surely, 2^61530086 is an apocalyptic number.

61530086 is a deficient number, since it is larger than the sum of its proper divisors (30815314).

61530086 is a wasteful number, since it uses less digits than its factorization.

61530086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16758.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 61530086 is about 7844.1115494363. Note that the first 3 decimals coincide. The cubic root of 61530086 is about 394.7866946391.

The spelling of 61530086 in words is "sixty-one million, five hundred thirty thousand, eighty-six".