1149413409 has 15 divisors (see below), whose sum is σ = 1717480897. Its totient is φ = 766072188.

The previous prime is 1149413407. The next prime is 1149413413. The reversal of 1149413409 is 9043149411.

The square root of 1149413409 is 33903.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1149413409 - 2¹ = 1149413407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149413407) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 303244 + ... + 307010.

Almost surely, 2^1149413409 is an apocalyptic number.

1149413409 is the 33903-rd square number.

1149413409 is the 16952-nd centered octagonal number.

It is an amenable number.

1149413409 is a deficient number, since it is larger than the sum of its proper divisors (568067488).

1149413409 is an frugal number, since it uses more digits than its factorization.

1149413409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7546 (or 3770 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The cubic root of 1149413409 is about 1047.5113880167.

Multiplying 1149413409 by its sum of digits (36), we get a square (41378882724 = 203418²).

The spelling of 1149413409 in words is "one billion, one hundred forty-nine million, four hundred thirteen thousand, four hundred nine".