1375662929 has 2 divisors, whose sum is σ = 1375662930. Its totient is φ = 1375662928.

The previous prime is 1375662919. The next prime is 1375662973. The reversal of 1375662929 is 9292665731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 690270529 + 685392400 = 26273^2 + 26180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375662929 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 (1375662919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687831464 + 687831465.

It is an arithmetic number, because the mean of its divisors is an integer number (687831465).

Almost surely, 2^1375662929 is an apocalyptic number.

It is an amenable number.

1375662929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375662929 is an equidigital number, since it uses as much as digits as its factorization.

1375662929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 50.

The square root of 1375662929 is about 37089.9302911181. The cubic root of 1375662929 is about 1112.1687245597.

The spelling of 1375662929 in words is "one billion, three hundred seventy-five million, six hundred sixty-two thousand, nine hundred twenty-nine".