1493590609 has 9 divisors (see below), whose sum is σ = 1737756891. Its totient is φ = 1279988640.

The previous prime is 1493590559. The next prime is 1493590639. The reversal of 1493590609 is 9060953941.

The square root of 1493590609 is 38647.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 420373009 + 1073217600 = 20503^2 + 32760^2 .

It is not a de Polignac number, because 1493590609 - 2⁷ = 1493590481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1493590639) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 267769 + ... + 273289.

It is an arithmetic number, because the mean of its divisors is an integer number (193084099).

Almost surely, 2^1493590609 is an apocalyptic number.

1493590609 is the 38647-th square number.

1493590609 is the 19324-th centered octagonal number.

It is an amenable number.

1493590609 is a deficient number, since it is larger than the sum of its proper divisors (244166282).

1493590609 is an frugal number, since it uses more digits than its factorization.

1493590609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11056 (or 5528 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 46.

The cubic root of 1493590609 is about 1143.0814878677.

The spelling of 1493590609 in words is "one billion, four hundred ninety-three million, five hundred ninety thousand, six hundred nine".