102442061 has 2 divisors, whose sum is σ = 102442062. Its totient is φ = 102442060.

The previous prime is 102442033. The next prime is 102442063. The reversal of 102442061 is 160244201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71149225 + 31292836 = 8435^2 + 5594^2 .

It is a cyclic number.

It is not a de Polignac number, because 102442061 - 2¹⁰ = 102441037 is a prime.

Together with 102442063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102442063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51221030 + 51221031.

It is an arithmetic number, because the mean of its divisors is an integer number (51221031).

Almost surely, 2^102442061 is an apocalyptic number.

It is an amenable number.

102442061 is a deficient number, since it is larger than the sum of its proper divisors (1).

102442061 is an equidigital number, since it uses as much as digits as its factorization.

102442061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 102442061 is about 10121.3665579308. The cubic root of 102442061 is about 467.9068851322.

Adding to 102442061 its reverse (160244201), we get a palindrome (262686262).

The spelling of 102442061 in words is "one hundred two million, four hundred forty-two thousand, sixty-one".