10400161 has 2 divisors, whose sum is σ = 10400162. Its totient is φ = 10400160.

The previous prime is 10400153. The next prime is 10400171. The reversal of 10400161 is 16100401.

10400161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9265936 + 1134225 = 3044^2 + 1065^2 .

It is a cyclic number.

It is not a de Polignac number, because 10400161 - 2³ = 10400153 is a prime.

It is not a weakly prime, because it can be changed into another prime (10400171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200080 + 5200081.

It is an arithmetic number, because the mean of its divisors is an integer number (5200081).

Almost surely, 2^10400161 is an apocalyptic number.

It is an amenable number.

10400161 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400161 is an equidigital number, since it uses as much as digits as its factorization.

10400161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 10400161 is about 3224.9280612131. The cubic root of 10400161 is about 218.2797029798.

Adding to 10400161 its reverse (16100401), we get a palindrome (26500562).

The spelling of 10400161 in words is "ten million, four hundred thousand, one hundred sixty-one".