1375879651 has 2 divisors, whose sum is σ = 1375879652. Its totient is φ = 1375879650.

The previous prime is 1375879633. The next prime is 1375879733. The reversal of 1375879651 is 1569785731.

It is a weak prime.

It is an emirp because it is prime and its reverse (1569785731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375879651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1375879601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687939825 + 687939826.

It is an arithmetic number, because the mean of its divisors is an integer number (687939826).

Almost surely, 2^1375879651 is an apocalyptic number.

1375879651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375879651 is an equidigital number, since it uses as much as digits as its factorization.

1375879651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 52.

The square root of 1375879651 is about 37092.8517507080. The cubic root of 1375879651 is about 1112.2271251968.

The spelling of 1375879651 in words is "one billion, three hundred seventy-five million, eight hundred seventy-nine thousand, six hundred fifty-one".