1263941164 has 12 divisors (see below), whose sum is σ = 2271678304. Its totient is φ = 614890224.

The previous prime is 1263941141. The next prime is 1263941171. The reversal of 1263941164 is 4611493621.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4269924 + ... + 4270219.

Almost surely, 2^1263941164 is an apocalyptic number.

It is an amenable number.

1263941164 is a deficient number, since it is larger than the sum of its proper divisors (1007737140).

1263941164 is a wasteful number, since it uses less digits than its factorization.

1263941164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8540184 (or 8540182 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 1263941164 is about 35551.9502137365. The cubic root of 1263941164 is about 1081.2072588092.

The spelling of 1263941164 in words is "one billion, two hundred sixty-three million, nine hundred forty-one thousand, one hundred sixty-four".