1954098403 has 4 divisors (see below), whose sum is σ = 1954237480. Its totient is φ = 1953959328.

The previous prime is 1954098323. The next prime is 1954098431. The reversal of 1954098403 is 3048904591.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1954098403 is a prime.

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 1954098403.

It is not an unprimeable number, because it can be changed into a prime (1954098803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45750 + ... + 77467.

It is an arithmetic number, because the mean of its divisors is an integer number (488559370).

Almost surely, 2^1954098403 is an apocalyptic number.

1954098403 is a deficient number, since it is larger than the sum of its proper divisors (139077).

1954098403 is a wasteful number, since it uses less digits than its factorization.

1954098403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139076.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1954098403 is about 44205.1852501491. The cubic root of 1954098403 is about 1250.2076248183.

The spelling of 1954098403 in words is "one billion, nine hundred fifty-four million, ninety-eight thousand, four hundred three".