2011149154 has 16 divisors (see below), whose sum is σ = 3449390976. Its totient is φ = 861494400.

The previous prime is 2011149143. The next prime is 2011149167. The reversal of 2011149154 is 4519411102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5382 + ... + 63649.

It is an arithmetic number, because the mean of its divisors is an integer number (215586936).

Almost surely, 2^2011149154 is an apocalyptic number.

2011149154 is a deficient number, since it is larger than the sum of its proper divisors (1438241822).

2011149154 is a wasteful number, since it uses less digits than its factorization.

2011149154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71121.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 2011149154 is about 44845.8376440891. The cubic root of 2011149154 is about 1262.2578885989.

The spelling of 2011149154 in words is "two billion, eleven million, one hundred forty-nine thousand, one hundred fifty-four".