406161403 has 2 divisors, whose sum is σ = 406161404. Its totient is φ = 406161402.

The previous prime is 406161373. The next prime is 406161491. The reversal of 406161403 is 304161604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406161403 - 2¹³ = 406153211 is a prime.

It is not a weakly prime, because it can be changed into another prime (406161103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203080701 + 203080702.

It is an arithmetic number, because the mean of its divisors is an integer number (203080702).

Almost surely, 2^406161403 is an apocalyptic number.

406161403 is a deficient number, since it is larger than the sum of its proper divisors (1).

406161403 is an equidigital number, since it uses as much as digits as its factorization.

406161403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 406161403 is about 20153.4464298293. The cubic root of 406161403 is about 740.5701735436.

The spelling of 406161403 in words is "four hundred six million, one hundred sixty-one thousand, four hundred three".