61501165 has 8 divisors (see below), whose sum is σ = 80510688. Its totient is φ = 44728080.

The previous prime is 61501163. The next prime is 61501169. The reversal of 61501165 is 56110516.

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

It is not a de Polignac number, because 61501165 - 2¹ = 61501163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61501163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559047 + ... + 559156.

It is an arithmetic number, because the mean of its divisors is an integer number (10063836).

Almost surely, 2^61501165 is an apocalyptic number.

It is an amenable number.

61501165 is a deficient number, since it is larger than the sum of its proper divisors (19009523).

61501165 is a wasteful number, since it uses less digits than its factorization.

61501165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118219.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 61501165 is about 7842.2678480144. The cubic root of 61501165 is about 394.7248310529.

The spelling of 61501165 in words is "sixty-one million, five hundred one thousand, one hundred sixty-five".