1489129445 has 4 divisors (see below), whose sum is σ = 1786955340. Its totient is φ = 1191303552.

The previous prime is 1489129403. The next prime is 1489129459. The reversal of 1489129445 is 5449219841.

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 284900641 + 1204228804 = 16879^2 + 34702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489129445 - 2¹² = 1489125349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1489129445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148912940 + ... + 148912949.

It is an arithmetic number, because the mean of its divisors is an integer number (446738835).

Almost surely, 2^1489129445 is an apocalyptic number.

It is an amenable number.

1489129445 is a deficient number, since it is larger than the sum of its proper divisors (297825895).

1489129445 is an equidigital number, since it uses as much as digits as its factorization.

1489129445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297825894.

The product of its digits is 414720, while the sum is 47.

The square root of 1489129445 is about 38589.2400158386. The cubic root of 1489129445 is about 1141.9422735135.

The spelling of 1489129445 in words is "one billion, four hundred eighty-nine million, one hundred twenty-nine thousand, four hundred forty-five".