1341988489 has 4 divisors (see below), whose sum is σ = 1354300420. Its totient is φ = 1329676560.

The previous prime is 1341988469. The next prime is 1341988499. The reversal of 1341988489 is 9848891431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9848891431 = 1193 ⋅8255567.

It can be written as a sum of positive squares in 2 ways, for example, as 1108357264 + 233631225 = 33292^2 + 15285^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341988489 - 2⁵ = 1341988457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1341988469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6155802 + ... + 6156019.

It is an arithmetic number, because the mean of its divisors is an integer number (338575105).

Almost surely, 2^1341988489 is an apocalyptic number.

It is an amenable number.

1341988489 is a deficient number, since it is larger than the sum of its proper divisors (12311931).

1341988489 is a wasteful number, since it uses less digits than its factorization.

1341988489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12311930.

The product of its digits is 1990656, while the sum is 55.

The square root of 1341988489 is about 36633.1610566164. The cubic root of 1341988489 is about 1103.0188394753.

The spelling of 1341988489 in words is "one billion, three hundred forty-one million, nine hundred eighty-eight thousand, four hundred eighty-nine".