1229401 has 2 divisors, whose sum is σ = 1229402. Its totient is φ = 1229400.

The previous prime is 1229381. The next prime is 1229443. The reversal of 1229401 is 1049221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166400 + 63001 = 1080^2 + 251^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229401 - 2⁵ = 1229369 is a prime.

It is a super-2 number, since 2×1229401² = 3022853637602, which contains 22 as substring.

It is equal to p₉₅₀₁₄ and since 1229401 and 95014 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1229461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614700 + 614701.

It is an arithmetic number, because the mean of its divisors is an integer number (614701).

2^1229401 is an apocalyptic number.

It is an amenable number.

1229401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229401 is an equidigital number, since it uses as much as digits as its factorization.

1229401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1229401 is about 1108.7835676993. The cubic root of 1229401 is about 107.1267313720.

The spelling of 1229401 in words is "one million, two hundred twenty-nine thousand, four hundred one".