946362181 has 2 divisors, whose sum is σ = 946362182. Its totient is φ = 946362180.

The previous prime is 946362143. The next prime is 946362233. The reversal of 946362181 is 181263649.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 840478081 + 105884100 = 28991^2 + 10290^2 .

It is a cyclic number.

It is not a de Polignac number, because 946362181 - 2¹⁵ = 946329413 is a prime.

It is a super-2 number, since 2×946362181² = 1791202755254153522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (946362121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473181090 + 473181091.

It is an arithmetic number, because the mean of its divisors is an integer number (473181091).

Almost surely, 2^946362181 is an apocalyptic number.

It is an amenable number.

946362181 is a deficient number, since it is larger than the sum of its proper divisors (1).

946362181 is an equidigital number, since it uses as much as digits as its factorization.

946362181 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 946362181 is about 30763.0001950395. Note that the first 3 decimals coincide. The cubic root of 946362181 is about 981.7911782569.

The spelling of 946362181 in words is "nine hundred forty-six million, three hundred sixty-two thousand, one hundred eighty-one".