1017988954 has 12 divisors (see below), whose sum is σ = 1611581994. Its totient is φ = 482204952.

The previous prime is 1017988949. The next prime is 1017988957. The reversal of 1017988954 is 4598897101.

It can be written as a sum of positive squares in only one way, i.e., 965034225 + 52954729 = 31065^2 + 7277^2 .

It is not an unprimeable number, because it can be changed into a prime (1017988957) 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 5 ways as a sum of consecutive naturals, for example, 704257 + ... + 705700.

Almost surely, 2^1017988954 is an apocalyptic number.

1017988954 is a deficient number, since it is larger than the sum of its proper divisors (593593040).

1017988954 is a wasteful number, since it uses less digits than its factorization.

1017988954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409997 (or 1409978 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 52.

The square root of 1017988954 is about 31905.9391649893. The cubic root of 1017988954 is about 1005.9607172547.

The spelling of 1017988954 in words is "one billion, seventeen million, nine hundred eighty-eight thousand, nine hundred fifty-four".