1350342009 has 21 divisors (see below), whose sum is σ = 2026075519. Its totient is φ = 899566560.

The previous prime is 1350342001. The next prime is 1350342013. The reversal of 1350342009 is 9002430531.

The square root of 1350342009 is 36747.

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., 229431609 + 1120910400 = 15147^2 + 33480^2 .

It is not a de Polignac number, because 1350342009 - 2³ = 1350342001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1350342001) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 991489 + ... + 992849.

Almost surely, 2^1350342009 is an apocalyptic number.

1350342009 is the 36747-th square number.

1350342009 is the 18374-th centered octagonal number.

It is an amenable number.

1350342009 is a deficient number, since it is larger than the sum of its proper divisors (675733510).

1350342009 is an frugal number, since it uses more digits than its factorization.

1350342009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The cubic root of 1350342009 is about 1105.3027729657.

The spelling of 1350342009 in words is "one billion, three hundred fifty million, three hundred forty-two thousand, nine".