1629149323 has 2 divisors, whose sum is σ = 1629149324. Its totient is φ = 1629149322.

The previous prime is 1629149261. The next prime is 1629149329. The reversal of 1629149323 is 3239419261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1629149323 - 2¹³ = 1629141131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1629149329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814574661 + 814574662.

It is an arithmetic number, because the mean of its divisors is an integer number (814574662).

Almost surely, 2^1629149323 is an apocalyptic number.

1629149323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1629149323 is an equidigital number, since it uses as much as digits as its factorization.

1629149323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 1629149323 is about 40362.7219473613. The cubic root of 1629149323 is about 1176.6671546016.

The spelling of 1629149323 in words is "one billion, six hundred twenty-nine million, one hundred forty-nine thousand, three hundred twenty-three".