102161097 has 12 divisors (see below), whose sum is σ = 147675060. Its totient is φ = 68057088.

The previous prime is 102161093. The next prime is 102161099. The reversal of 102161097 is 790161201.

It can be written as a sum of positive squares in 2 ways, for example, as 92852496 + 9308601 = 9636^2 + 3051^2 .

It is not a de Polignac number, because 102161097 - 2² = 102161093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102161097.

It is not an unprimeable number, because it can be changed into a prime (102161093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11929 + ... + 18617.

It is an arithmetic number, because the mean of its divisors is an integer number (12306255).

Almost surely, 2^102161097 is an apocalyptic number.

It is an amenable number.

102161097 is a deficient number, since it is larger than the sum of its proper divisors (45513963).

102161097 is a wasteful number, since it uses less digits than its factorization.

102161097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8392 (or 8389 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 102161097 is about 10107.4772816960. The cubic root of 102161097 is about 467.4787232350.

The spelling of 102161097 in words is "one hundred two million, one hundred sixty-one thousand, ninety-seven".