1351812289 has 3 divisors (see below), whose sum is σ = 1351849057. Its totient is φ = 1351775522.

The previous prime is 1351812263. The next prime is 1351812313. The reversal of 1351812289 is 9822181531.

The square root of 1351812289 is 36767.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9822181531 = 4871 ⋅2016461.

It is not a de Polignac number, because 1351812289 - 2²³ = 1343423681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351812229) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18384 + ... + 55150.

Almost surely, 2^1351812289 is an apocalyptic number.

1351812289 is the 36767-th square number.

1351812289 is the 18384-th centered octagonal number.

It is an amenable number.

1351812289 is a deficient number, since it is larger than the sum of its proper divisors (36768).

1351812289 is an frugal number, since it uses more digits than its factorization.

1351812289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73534 (or 36767 counting only the distinct ones).

The product of its digits is 34560, while the sum is 40.

The cubic root of 1351812289 is about 1105.7037862130.

The spelling of 1351812289 in words is "one billion, three hundred fifty-one million, eight hundred twelve thousand, two hundred eighty-nine".