406161941 has 2 divisors, whose sum is σ = 406161942. Its totient is φ = 406161940.

The previous prime is 406161893. The next prime is 406161947. The reversal of 406161941 is 149161604.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247149841 + 159012100 = 15721^2 + 12610^2 .

It is a cyclic number.

It is not a de Polignac number, because 406161941 - 2¹⁰ = 406160917 is a prime.

It is equal to p_21647336 and since 406161941 and 21647336 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 406161898 and 406161907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406161947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203080970 + 203080971.

It is an arithmetic number, because the mean of its divisors is an integer number (203080971).

Almost surely, 2^406161941 is an apocalyptic number.

It is an amenable number.

406161941 is a deficient number, since it is larger than the sum of its proper divisors (1).

406161941 is an equidigital number, since it uses as much as digits as its factorization.

406161941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 406161941 is about 20153.4597774179. The cubic root of 406161941 is about 740.5705005290.

The spelling of 406161941 in words is "four hundred six million, one hundred sixty-one thousand, nine hundred forty-one".