1230353509 has 8 divisors (see below), whose sum is σ = 1533947328. Its totient is φ = 958716960.

The previous prime is 1230353477. The next prime is 1230353549. The reversal of 1230353509 is 9053530321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230353509 - 2⁵ = 1230353477 is a prime.

It is a super-2 number, since 2×1230353509² = 3027539514217226162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230353549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7989232 + ... + 7989385.

It is an arithmetic number, because the mean of its divisors is an integer number (191743416).

Almost surely, 2^1230353509 is an apocalyptic number.

It is an amenable number.

1230353509 is a deficient number, since it is larger than the sum of its proper divisors (303593819).

1230353509 is a wasteful number, since it uses less digits than its factorization.

1230353509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15978635.

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 1230353509 is about 35076.3953250616. The cubic root of 1230353509 is about 1071.5439059648.

The spelling of 1230353509 in words is "one billion, two hundred thirty million, three hundred fifty-three thousand, five hundred nine".