948163261 has 2 divisors, whose sum is σ = 948163262. Its totient is φ = 948163260.

The previous prime is 948163193. The next prime is 948163301. The reversal of 948163261 is 162361849.

It is an a-pointer prime, because the next prime (948163301) can be obtained adding 948163261 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 824264100 + 123899161 = 28710^2 + 11131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-948163261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948163361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474081630 + 474081631.

It is an arithmetic number, because the mean of its divisors is an integer number (474081631).

Almost surely, 2^948163261 is an apocalyptic number.

It is an amenable number.

948163261 is a deficient number, since it is larger than the sum of its proper divisors (1).

948163261 is an equidigital number, since it uses as much as digits as its factorization.

948163261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 948163261 is about 30792.2597579327. The cubic root of 948163261 is about 982.4136192555.

The spelling of 948163261 in words is "nine hundred forty-eight million, one hundred sixty-three thousand, two hundred sixty-one".