1497031009 has 4 divisors (see below), whose sum is σ = 1497292720. Its totient is φ = 1496769300.

The previous prime is 1497031001. The next prime is 1497031037. The reversal of 1497031009 is 9001307941.

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 1497031009 - 2³ = 1497031001 is a prime.

It is a super-2 number, since 2×1497031009² = 4482203683815116162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1497031001) 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, 122079 + ... + 133780.

It is an arithmetic number, because the mean of its divisors is an integer number (374323180).

Almost surely, 2^1497031009 is an apocalyptic number.

It is an amenable number.

1497031009 is a deficient number, since it is larger than the sum of its proper divisors (261711).

1497031009 is an equidigital number, since it uses as much as digits as its factorization.

1497031009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261710.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 1497031009 is about 38691.4849676256. The cubic root of 1497031009 is about 1143.9584889762.

The spelling of 1497031009 in words is "one billion, four hundred ninety-seven million, thirty-one thousand, nine".