1351605089 has 2 divisors, whose sum is σ = 1351605090. Its totient is φ = 1351605088.

The previous prime is 1351605041. The next prime is 1351605103. The reversal of 1351605089 is 9805061531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1083726400 + 267878689 = 32920^2 + 16367^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351605089 - 2⁸ = 1351604833 is a prime.

It is a super-2 number, since 2×1351605089² = 3653672633221395842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1351605019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675802544 + 675802545.

It is an arithmetic number, because the mean of its divisors is an integer number (675802545).

Almost surely, 2^1351605089 is an apocalyptic number.

It is an amenable number.

1351605089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351605089 is an equidigital number, since it uses as much as digits as its factorization.

1351605089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 1351605089 is about 36764.1821478460. The cubic root of 1351605089 is about 1105.6472908123.

The spelling of 1351605089 in words is "one billion, three hundred fifty-one million, six hundred five thousand, eighty-nine".