2291154 has 8 divisors (see below), whose sum is σ = 4582320. Its totient is φ = 763716.

The previous prime is 2291143. The next prime is 2291167. The reversal of 2291154 is 4511922.

It is a sphenic number, since it is the product of 3 distinct primes.

2291154 is an admirable number.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190924 + ... + 190935.

It is an arithmetic number, because the mean of its divisors is an integer number (572790).

2^2291154 is an apocalyptic number.

2291154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2291154 is a wasteful number, since it uses less digits than its factorization.

2291154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381864.

The product of its digits is 720, while the sum is 24.

The square root of 2291154 is about 1513.6558393505. The cubic root of 2291154 is about 131.8311661479.

The spelling of 2291154 in words is "two million, two hundred ninety-one thousand, one hundred fifty-four".