400301129 has 2 divisors, whose sum is σ = 400301130. Its totient is φ = 400301128.

The previous prime is 400301089. The next prime is 400301141. The reversal of 400301129 is 921103004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386201104 + 14100025 = 19652^2 + 3755^2 .

It is a cyclic number.

It is not a de Polignac number, because 400301129 - 2²⁴ = 383523913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400301129.

It is not a weakly prime, because it can be changed into another prime (400301149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200150564 + 200150565.

It is an arithmetic number, because the mean of its divisors is an integer number (200150565).

Almost surely, 2^400301129 is an apocalyptic number.

It is an amenable number.

400301129 is a deficient number, since it is larger than the sum of its proper divisors (1).

400301129 is an equidigital number, since it uses as much as digits as its factorization.

400301129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 400301129 is about 20007.5268086788. The cubic root of 400301129 is about 736.9911481367.

The spelling of 400301129 in words is "four hundred million, three hundred one thousand, one hundred twenty-nine".