1409359509 has 12 divisors (see below), whose sum is σ = 2036578752. Its totient is φ = 939186600.

The previous prime is 1409359507. The next prime is 1409359547. The reversal of 1409359509 is 9059539041.

It is a happy number.

1409359509 is a `hidden beast` number, since 1 + 4 + 0 + 93 + 59 + 509 = 666.

It is not a de Polignac number, because 1409359509 - 2¹ = 1409359507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409359507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8157 + ... + 53714.

It is an arithmetic number, because the mean of its divisors is an integer number (169714896).

Almost surely, 2^1409359509 is an apocalyptic number.

It is an amenable number.

1409359509 is a deficient number, since it is larger than the sum of its proper divisors (627219243).

1409359509 is a wasteful number, since it uses less digits than its factorization.

1409359509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64408 (or 64405 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 1409359509 is about 37541.4372260839. The cubic root of 1409359509 is about 1121.1763546369.

The spelling of 1409359509 in words is "one billion, four hundred nine million, three hundred fifty-nine thousand, five hundred nine".