1954081 has 4 divisors (see below), whose sum is σ = 2006932. Its totient is φ = 1901232.

The previous prime is 1954033. The next prime is 1954087. The reversal of 1954081 is 1804591.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1804591 = 787 ⋅2293.

It can be written as a sum of positive squares in 2 ways, for example, as 665856 + 1288225 = 816^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1954081 - 2⁹ = 1953569 is a prime.

It is a super-2 number, since 2×1954081² = 7636865109122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1954087) 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, 26370 + ... + 26443.

It is an arithmetic number, because the mean of its divisors is an integer number (501733).

2^1954081 is an apocalyptic number.

It is an amenable number.

1954081 is a deficient number, since it is larger than the sum of its proper divisors (52851).

1954081 is an equidigital number, since it uses as much as digits as its factorization.

1954081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52850.

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

The square root of 1954081 is about 1397.8844730520. The cubic root of 1954081 is about 125.0203913400.

The spelling of 1954081 in words is "one million, nine hundred fifty-four thousand, eighty-one".