2091154 has 8 divisors (see below), whose sum is σ = 3378060. Its totient is φ = 965136.

The previous prime is 2091151. The next prime is 2091191. The reversal of 2091154 is 4511902.

It can be written as a sum of positive squares in 2 ways, for example, as 1703025 + 388129 = 1305^2 + 623^2 .

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

It is a super-3 number, since 3×2091154³ = 27433379140788360792, which contains 333 as substring.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2091151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40189 + ... + 40240.

2^2091154 is an apocalyptic number.

2091154 is a deficient number, since it is larger than the sum of its proper divisors (1286906).

2091154 is a wasteful number, since it uses less digits than its factorization.

2091154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80444.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2091154 is about 1446.0822936472. The cubic root of 2091154 is about 127.8778538547.

The spelling of 2091154 in words is "two million, ninety-one thousand, one hundred fifty-four".