1351659389 has 2 divisors, whose sum is σ = 1351659390. Its totient is φ = 1351659388.

The previous prime is 1351659359. The next prime is 1351659391. The reversal of 1351659389 is 9839561531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1278420025 + 73239364 = 35755^2 + 8558^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351659389 - 2¹² = 1351655293 is a prime.

Together with 1351659391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351659359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675829694 + 675829695.

It is an arithmetic number, because the mean of its divisors is an integer number (675829695).

Almost surely, 2^1351659389 is an apocalyptic number.

It is an amenable number.

1351659389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351659389 is an equidigital number, since it uses as much as digits as its factorization.

1351659389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 50.

The square root of 1351659389 is about 36764.9206309493. The cubic root of 1351659389 is about 1105.6620968737.

The spelling of 1351659389 in words is "one billion, three hundred fifty-one million, six hundred fifty-nine thousand, three hundred eighty-nine".