1954957193 has 8 divisors (see below), whose sum is σ = 2311279680. Its totient is φ = 1617895440.

The previous prime is 1954957189. The next prime is 1954957223. The reversal of 1954957193 is 3917594591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1954957193 - 2² = 1954957189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1954957163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4814963 + ... + 4815368.

It is an arithmetic number, because the mean of its divisors is an integer number (288909960).

Almost surely, 2^1954957193 is an apocalyptic number.

It is an amenable number.

1954957193 is a deficient number, since it is larger than the sum of its proper divisors (356322487).

1954957193 is an equidigital number, since it uses as much as digits as its factorization.

1954957193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9630367.

The product of its digits is 1530900, while the sum is 53.

The square root of 1954957193 is about 44214.8978625983. The cubic root of 1954957193 is about 1250.3907456815.

The spelling of 1954957193 in words is "one billion, nine hundred fifty-four million, nine hundred fifty-seven thousand, one hundred ninety-three".