1351255389 has 8 divisors (see below), whose sum is σ = 1965462432. Its totient is φ = 818942640.

The previous prime is 1351255379. The next prime is 1351255391. The reversal of 1351255389 is 9835521531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1351255389 - 2¹³ = 1351247197 is a prime.

It is a super-2 number, since 2×1351255389² = 3651782252603082642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1351255389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351255309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20473534 + ... + 20473599.

It is an arithmetic number, because the mean of its divisors is an integer number (245682804).

Almost surely, 2^1351255389 is an apocalyptic number.

It is an amenable number.

1351255389 is a deficient number, since it is larger than the sum of its proper divisors (614207043).

1351255389 is a wasteful number, since it uses less digits than its factorization.

1351255389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40947147.

The product of its digits is 162000, while the sum is 42.

The square root of 1351255389 is about 36759.4258524259. The cubic root of 1351255389 is about 1105.5519280935.

The spelling of 1351255389 in words is "one billion, three hundred fifty-one million, two hundred fifty-five thousand, three hundred eighty-nine".