1489379109 has 4 divisors (see below), whose sum is σ = 1985838816. Its totient is φ = 992919404.

The previous prime is 1489379107. The next prime is 1489379123. The reversal of 1489379109 is 9019739841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1489379109 - 2¹ = 1489379107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489379107) 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, 248229849 + ... + 248229854.

It is an arithmetic number, because the mean of its divisors is an integer number (496459704).

Almost surely, 2^1489379109 is an apocalyptic number.

It is an amenable number.

1489379109 is a deficient number, since it is larger than the sum of its proper divisors (496459707).

1489379109 is an equidigital number, since it uses as much as digits as its factorization.

1489379109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496459706.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 1489379109 is about 38592.4747716443. The cubic root of 1489379109 is about 1142.0060884145.

The spelling of 1489379109 in words is "one billion, four hundred eighty-nine million, three hundred seventy-nine thousand, one hundred nine".