2011451 has 4 divisors (see below), whose sum is σ = 2166192. Its totient is φ = 1856712.

The previous prime is 2011441. The next prime is 2011483. The reversal of 2011451 is 1541102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1541102 = 2 ⋅770551.

It is a de Polignac number, because none of the positive numbers 2^k-2011451 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77351 + ... + 77376.

It is an arithmetic number, because the mean of its divisors is an integer number (541548).

2^2011451 is an apocalyptic number.

2011451 is a deficient number, since it is larger than the sum of its proper divisors (154741).

2011451 is a wasteful number, since it uses less digits than its factorization.

2011451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154740.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 2011451 is about 1418.2563238005. The cubic root of 2011451 is about 126.2321034659.

Adding to 2011451 its reverse (1541102), we get a palindrome (3552553).

The spelling of 2011451 in words is "two million, eleven thousand, four hundred fifty-one".