400301149 has 2 divisors, whose sum is σ = 400301150. Its totient is φ = 400301148.

The previous prime is 400301141. The next prime is 400301179. The reversal of 400301149 is 941103004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400200025 + 101124 = 20005^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 400301149 - 2³ = 400301141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400301141) 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, 200150574 + 200150575.

It is an arithmetic number, because the mean of its divisors is an integer number (200150575).

Almost surely, 2^400301149 is an apocalyptic number.

It is an amenable number.

400301149 is a deficient number, since it is larger than the sum of its proper divisors (1).

400301149 is an equidigital number, since it uses as much as digits as its factorization.

400301149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 400301149 is about 20007.5273084907. The cubic root of 400301149 is about 736.9911604106.

The spelling of 400301149 in words is "four hundred million, three hundred one thousand, one hundred forty-nine".