102150161 has 4 divisors (see below), whose sum is σ = 108159012. Its totient is φ = 96141312.

The previous prime is 102150119. The next prime is 102150197. The reversal of 102150161 is 161051201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161051201 = 19 ⋅8476379.

It can be written as a sum of positive squares in 2 ways, for example, as 93412225 + 8737936 = 9665^2 + 2956^2 .

It is a cyclic number.

It is not a de Polignac number, because 102150161 - 2¹⁰ = 102149137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6008833 = 102150161 / (1 + 0 + 2 + 1 + 5 + 0 + 1 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102150101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3004400 + ... + 3004433.

It is an arithmetic number, because the mean of its divisors is an integer number (27039753).

Almost surely, 2^102150161 is an apocalyptic number.

It is an amenable number.

102150161 is a deficient number, since it is larger than the sum of its proper divisors (6008851).

102150161 is an equidigital number, since it uses as much as digits as its factorization.

102150161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6008850.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 102150161 is about 10106.9362815840. The cubic root of 102150161 is about 467.4620419676.

The spelling of 102150161 in words is "one hundred two million, one hundred fifty thousand, one hundred sixty-one".