11649051 has 6 divisors (see below), whose sum is σ = 16826420. Its totient is φ = 7766028.

The previous prime is 11649049. The next prime is 11649061. The reversal of 11649051 is 15094611.

11649051 is a `hidden beast` number, since 11 + 649 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 11649051 - 2¹ = 11649049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11649061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 647161 + ... + 647178.

Almost surely, 2^11649051 is an apocalyptic number.

11649051 is a deficient number, since it is larger than the sum of its proper divisors (5177369).

11649051 is a wasteful number, since it uses less digits than its factorization.

11649051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294345 (or 1294342 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 11649051 is about 3413.0706116340. The cubic root of 11649051 is about 226.6888619653.

The spelling of 11649051 in words is "eleven million, six hundred forty-nine thousand, fifty-one".