1356546889 has 4 divisors (see below), whose sum is σ = 1361374740. Its totient is φ = 1351719040.

The previous prime is 1356546883. The next prime is 1356546907. The reversal of 1356546889 is 9886456531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 613057600 + 743489289 = 24760^2 + 27267^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356546889 - 2¹³ = 1356538697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356546883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2413504 + ... + 2414065.

It is an arithmetic number, because the mean of its divisors is an integer number (340343685).

Almost surely, 2^1356546889 is an apocalyptic number.

It is an amenable number.

1356546889 is a deficient number, since it is larger than the sum of its proper divisors (4827851).

1356546889 is an equidigital number, since it uses as much as digits as its factorization.

1356546889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4827850.

The product of its digits is 6220800, while the sum is 55.

The square root of 1356546889 is about 36831.3302637849. The cubic root of 1356546889 is about 1106.9931578397.

The spelling of 1356546889 in words is "one billion, three hundred fifty-six million, five hundred forty-six thousand, eight hundred eighty-nine".