102143061 has 6 divisors (see below), whose sum is σ = 147539990. Its totient is φ = 68095368.

The previous prime is 102143059. The next prime is 102143077. The reversal of 102143061 is 160341201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 98604900 + 3538161 = 9930^2 + 1881^2 .

It is not a de Polignac number, because 102143061 - 2¹ = 102143059 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102143011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5674606 + ... + 5674623.

Almost surely, 2^102143061 is an apocalyptic number.

It is an amenable number.

102143061 is a deficient number, since it is larger than the sum of its proper divisors (45396929).

102143061 is a wasteful number, since it uses less digits than its factorization.

102143061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11349235 (or 11349232 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 102143061 is about 10106.5850315524. The cubic root of 102143061 is about 467.4512113193.

Adding to 102143061 its reverse (160341201), we get a palindrome (262484262).

The spelling of 102143061 in words is "one hundred two million, one hundred forty-three thousand, sixty-one".