1403213129 has 2 divisors, whose sum is σ = 1403213130. Its totient is φ = 1403213128.

The previous prime is 1403213051. The next prime is 1403213131. The reversal of 1403213129 is 9213123041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1255639225 + 147573904 = 35435^2 + 12148^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403213129 - 2²⁸ = 1134777673 is a prime.

Together with 1403213131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1403213098 and 1403213107.

It is not a weakly prime, because it can be changed into another prime (1403213159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701606564 + 701606565.

It is an arithmetic number, because the mean of its divisors is an integer number (701606565).

Almost surely, 2^1403213129 is an apocalyptic number.

It is an amenable number.

1403213129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403213129 is an equidigital number, since it uses as much as digits as its factorization.

1403213129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1403213129 is about 37459.4865020865. The cubic root of 1403213129 is about 1119.5441195781.

The spelling of 1403213129 in words is "one billion, four hundred three million, two hundred thirteen thousand, one hundred twenty-nine".