1954934257 has 4 divisors (see below), whose sum is σ = 2007770356. Its totient is φ = 1902098160.

The previous prime is 1954934251. The next prime is 1954934269. The reversal of 1954934257 is 7524394591.

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 1225070001 + 729864256 = 35001^2 + 27016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1954934257 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 1954934257.

It is not an unprimeable number, because it can be changed into a prime (1954934251) 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, 26417994 + ... + 26418067.

It is an arithmetic number, because the mean of its divisors is an integer number (501942589).

Almost surely, 2^1954934257 is an apocalyptic number.

It is an amenable number.

1954934257 is a deficient number, since it is larger than the sum of its proper divisors (52836099).

1954934257 is an equidigital number, since it uses as much as digits as its factorization.

1954934257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52836098.

The product of its digits is 1360800, while the sum is 49.

The square root of 1954934257 is about 44214.6384922460. The cubic root of 1954934257 is about 1250.3858557067.

The spelling of 1954934257 in words is "one billion, nine hundred fifty-four million, nine hundred thirty-four thousand, two hundred fifty-seven".