1674138929 has 2 divisors, whose sum is σ = 1674138930. Its totient is φ = 1674138928.

The previous prime is 1674138923. The next prime is 1674138943. The reversal of 1674138929 is 9298314761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1614432400 + 59706529 = 40180^2 + 7727^2 .

It is an emirp because it is prime and its reverse (9298314761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1674138929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1674138923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837069464 + 837069465.

It is an arithmetic number, because the mean of its divisors is an integer number (837069465).

Almost surely, 2^1674138929 is an apocalyptic number.

It is an amenable number.

1674138929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1674138929 is an equidigital number, since it uses as much as digits as its factorization.

1674138929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 1674138929 is about 40916.2428504867. The cubic root of 1674138929 is about 1187.4003294222.

The spelling of 1674138929 in words is "one billion, six hundred seventy-four million, one hundred thirty-eight thousand, nine hundred twenty-nine".