1263631060 has 12 divisors (see below), whose sum is σ = 2653625268. Its totient is φ = 505452416.

The previous prime is 1263630983. The next prime is 1263631073. The reversal of 1263631060 is 601363621.

It can be written as a sum of positive squares in 2 ways, for example, as 130096836 + 1133534224 = 11406^2 + 33668^2 .

It is a congruent number.

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, 31590757 + ... + 31590796.

It is an arithmetic number, because the mean of its divisors is an integer number (221135439).

Almost surely, 2^1263631060 is an apocalyptic number.

1263631060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1263631060 is an abundant number, since it is smaller than the sum of its proper divisors (1389994208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1263631060 is a wasteful number, since it uses less digits than its factorization.

1263631060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63181562 (or 63181560 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1263631060 is about 35547.5886664623. The cubic root of 1263631060 is about 1081.1188279736.

Adding to 1263631060 its reverse (601363621), we get a palindrome (1864994681).

The spelling of 1263631060 in words is "one billion, two hundred sixty-three million, six hundred thirty-one thousand, sixty".