102151117 has 8 divisors (see below), whose sum is σ = 105058296. Its totient is φ = 99251712.

The previous prime is 102151109. The next prime is 102151123. The reversal of 102151117 is 711151201.

It can be written as a sum of positive squares in 4 ways, for example, as 12489156 + 89661961 = 3534^2 + 9469^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 102151117 - 2³ = 102151109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102151094 and 102151103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102151817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33813 + ... + 36709.

It is an arithmetic number, because the mean of its divisors is an integer number (13132287).

Almost surely, 2^102151117 is an apocalyptic number.

It is an amenable number.

102151117 is a deficient number, since it is larger than the sum of its proper divisors (2907179).

102151117 is an equidigital number, since it uses as much as digits as its factorization.

102151117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887.

The product of its (nonzero) digits is 70, while the sum is 19.

The square root of 102151117 is about 10106.9835757262. The cubic root of 102151117 is about 467.4635002531.

The spelling of 102151117 in words is "one hundred two million, one hundred fifty-one thousand, one hundred seventeen".