1263548116 has 6 divisors (see below), whose sum is σ = 2211209210. Its totient is φ = 631774056.

The previous prime is 1263548101. The next prime is 1263548129. The reversal of 1263548116 is 6118453621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 867538116 + 396010000 = 29454^2 + 19900^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157943511 + ... + 157943518.

Almost surely, 2^1263548116 is an apocalyptic number.

It is an amenable number.

1263548116 is a deficient number, since it is larger than the sum of its proper divisors (947661094).

1263548116 is a wasteful number, since it uses less digits than its factorization.

1263548116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315887033 (or 315887031 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 1263548116 is about 35546.4219859046. The cubic root of 1263548116 is about 1081.0951727879.

The spelling of 1263548116 in words is "one billion, two hundred sixty-three million, five hundred forty-eight thousand, one hundred sixteen".