1008149409 has 28 divisors (see below), whose sum is σ = 1577277696. Its totient is φ = 642867192.

The previous prime is 1008149383. The next prime is 1008149431. The reversal of 1008149409 is 9049418001.

1008149409 is a `hidden beast` number, since 100 + 8 + 149 + 409 = 666.

It is not a de Polignac number, because 1008149409 - 2¹³ = 1008141217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1008149479) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 13297 + ... + 46830.

Almost surely, 2^1008149409 is an apocalyptic number.

It is an amenable number.

1008149409 is a deficient number, since it is larger than the sum of its proper divisors (569128287).

1008149409 is an frugal number, since it uses more digits than its factorization.

1008149409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60168 (or 60153 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1008149409 is about 31751.3686161715. The cubic root of 1008149409 is about 1002.7091236878.

The spelling of 1008149409 in words is "one billion, eight million, one hundred forty-nine thousand, four hundred nine".