1801003429 has 2 divisors, whose sum is σ = 1801003430. Its totient is φ = 1801003428.

The previous prime is 1801003411. The next prime is 1801003439. The reversal of 1801003429 is 9243001081.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1234468225 + 566535204 = 35135^2 + 23802^2 .

It is a cyclic number.

It is not a de Polignac number, because 1801003429 - 2⁵ = 1801003397 is a prime.

It is a super-2 number, since 2×1801003429² = 6487226702539516082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1801003397 and 1801003406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1801003439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900501714 + 900501715.

It is an arithmetic number, because the mean of its divisors is an integer number (900501715).

Almost surely, 2^1801003429 is an apocalyptic number.

It is an amenable number.

1801003429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1801003429 is an equidigital number, since it uses as much as digits as its factorization.

1801003429 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 28.

The square root of 1801003429 is about 42438.2307477586. The cubic root of 1801003429 is about 1216.6663963053. Note that the first 3 decimals are identical.

The spelling of 1801003429 in words is "one billion, eight hundred one million, three thousand, four hundred twenty-nine".