1263979094 has 16 divisors (see below), whose sum is σ = 2241540000. Its totient is φ = 523025664.

The previous prime is 1263979091. The next prime is 1263979097. The reversal of 1263979094 is 4909793621.

It is an interprime number because it is at equal distance from previous prime (1263979091) and next prime (1263979097).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263979091) 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, 1556219 + ... + 1557030.

It is an arithmetic number, because the mean of its divisors is an integer number (140096250).

Almost surely, 2^1263979094 is an apocalyptic number.

1263979094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1263979094 is a deficient number, since it is larger than the sum of its proper divisors (977560906).

1263979094 is a wasteful number, since it uses less digits than its factorization.

1263979094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113287.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 1263979094 is about 35552.4836544509. The cubic root of 1263979094 is about 1081.2180741283.

The spelling of 1263979094 in words is "one billion, two hundred sixty-three million, nine hundred seventy-nine thousand, ninety-four".