1493500009 has 4 divisors (see below), whose sum is σ = 1558434816. Its totient is φ = 1428565204.

The previous prime is 1493500007. The next prime is 1493500049. The reversal of 1493500009 is 9000053941.

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 1493500009 - 2¹ = 1493500007 is a prime.

It is a super-3 number, since 3×1493500009³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1493500003) 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, 32467369 + ... + 32467414.

It is an arithmetic number, because the mean of its divisors is an integer number (389608704).

Almost surely, 2^1493500009 is an apocalyptic number.

It is an amenable number.

1493500009 is a deficient number, since it is larger than the sum of its proper divisors (64934807).

1493500009 is an equidigital number, since it uses as much as digits as its factorization.

1493500009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64934806.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1493500009 is about 38645.8278343213. The cubic root of 1493500009 is about 1143.0583746005.

The spelling of 1493500009 in words is "one billion, four hundred ninety-three million, five hundred thousand, nine".