1954117 has 4 divisors (see below), whose sum is σ = 2131776. Its totient is φ = 1776460.

The previous prime is 1954111. The next prime is 1954151. The reversal of 1954117 is 7114591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7114591 = 11 ⋅646781.

It is a cyclic number.

It is not a de Polignac number, because 1954117 - 2¹⁹ = 1429829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1954111) 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, 88813 + ... + 88834.

It is an arithmetic number, because the mean of its divisors is an integer number (532944).

2^1954117 is an apocalyptic number.

It is an amenable number.

1954117 is a deficient number, since it is larger than the sum of its proper divisors (177659).

1954117 is a wasteful number, since it uses less digits than its factorization.

1954117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177658.

The product of its digits is 1260, while the sum is 28.

The square root of 1954117 is about 1397.8973495933. The cubic root of 1954117 is about 125.0211590848.

The spelling of 1954117 in words is "one million, nine hundred fifty-four thousand, one hundred seventeen".