1423307129 has 2 divisors, whose sum is σ = 1423307130. Its totient is φ = 1423307128.

The previous prime is 1423307069. The next prime is 1423307131. The reversal of 1423307129 is 9217033241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1245031225 + 178275904 = 35285^2 + 13352^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423307129 - 2¹² = 1423303033 is a prime.

Together with 1423307131, 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 = 1423307095 and 1423307104.

It is not a weakly prime, because it can be changed into another prime (1423307159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711653564 + 711653565.

It is an arithmetic number, because the mean of its divisors is an integer number (711653565).

Almost surely, 2^1423307129 is an apocalyptic number.

It is an amenable number.

1423307129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423307129 is an equidigital number, since it uses as much as digits as its factorization.

1423307129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1423307129 is about 37726.7428888315. The cubic root of 1423307129 is about 1124.8627662066.

The spelling of 1423307129 in words is "one billion, four hundred twenty-three million, three hundred seven thousand, one hundred twenty-nine".