102961181 has 2 divisors, whose sum is σ = 102961182. Its totient is φ = 102961180.

The previous prime is 102961151. The next prime is 102961211. The reversal of 102961181 is 181169201.

It is a balanced prime because it is at equal distance from previous prime (102961151) and next prime (102961211).

It can be written as a sum of positive squares in only one way, i.e., 52693081 + 50268100 = 7259^2 + 7090^2 .

It is a cyclic number.

It is not a de Polignac number, because 102961181 - 2¹⁰ = 102960157 is a prime.

It is a super-2 number, since 2×102961181² = 21202009585829522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102961141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51480590 + 51480591.

It is an arithmetic number, because the mean of its divisors is an integer number (51480591).

Almost surely, 2^102961181 is an apocalyptic number.

It is an amenable number.

102961181 is a deficient number, since it is larger than the sum of its proper divisors (1).

102961181 is an equidigital number, since it uses as much as digits as its factorization.

102961181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The square root of 102961181 is about 10146.9789100007. The cubic root of 102961181 is about 468.6959187148.

The spelling of 102961181 in words is "one hundred two million, nine hundred sixty-one thousand, one hundred eighty-one".