1263922954 has 12 divisors (see below), whose sum is σ = 2205416754. Its totient is φ = 541681224.

The previous prime is 1263922943. The next prime is 1263922973. The reversal of 1263922954 is 4592293621.

It can be written as a sum of positive squares in only one way, i.e., 1255072329 + 8850625 = 35427^2 + 2975^2 .

It is a super-2 number, since 2×1263922954² = 3195002467296172232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1263922954.

It is an unprimeable number.

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, 6448489 + ... + 6448684.

Almost surely, 2^1263922954 is an apocalyptic number.

1263922954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1263922954 is a deficient number, since it is larger than the sum of its proper divisors (941493800).

1263922954 is a wasteful number, since it uses less digits than its factorization.

1263922954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12897189 (or 12897182 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 1263922954 is about 35551.6941087201. The cubic root of 1263922954 is about 1081.2020663527.

The spelling of 1263922954 in words is "one billion, two hundred sixty-three million, nine hundred twenty-two thousand, nine hundred fifty-four".