61195515 has 8 divisors (see below), whose sum is σ = 97912848. Its totient is φ = 32637600.

The previous prime is 61195469. The next prime is 61195531. The reversal of 61195515 is 51559116.

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

It is not a de Polignac number, because 61195515 - 2⁶ = 61195451 is a prime.

It is a super-2 number, since 2×61195515² = 7489782112230450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039836 + ... + 2039865.

It is an arithmetic number, because the mean of its divisors is an integer number (12239106).

Almost surely, 2^61195515 is an apocalyptic number.

61195515 is a deficient number, since it is larger than the sum of its proper divisors (36717333).

61195515 is a wasteful number, since it uses less digits than its factorization.

61195515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079709.

The product of its digits is 6750, while the sum is 33.

The square root of 61195515 is about 7822.7562278266. The cubic root of 61195515 is about 394.0698404027.

The spelling of 61195515 in words is "sixty-one million, one hundred ninety-five thousand, five hundred fifteen".