1954129 has 4 divisors (see below), whose sum is σ = 1959076. Its totient is φ = 1949184.

The previous prime is 1954111. The next prime is 1954151. The reversal of 1954129 is 9214591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63504 + 1890625 = 252^2 + 1375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1954129 - 2⁵ = 1954097 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 5⁹ + 4⁴ + 1 + 2³ + 9³ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1954129.

It is not an unprimeable number, because it can be changed into a prime (1954159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1824 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (489769).

2^1954129 is an apocalyptic number.

It is an amenable number.

1954129 is a deficient number, since it is larger than the sum of its proper divisors (4947).

1954129 is an equidigital number, since it uses as much as digits as its factorization.

1954129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946.

The product of its digits is 3240, while the sum is 31.

The square root of 1954129 is about 1397.9016417474. The cubic root of 1954129 is about 125.0214149976.

The spelling of 1954129 in words is "one million, nine hundred fifty-four thousand, one hundred twenty-nine".