1263080149 has 2 divisors, whose sum is σ = 1263080150. Its totient is φ = 1263080148.

The previous prime is 1263080141. The next prime is 1263080171. The reversal of 1263080149 is 9410803621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 745836100 + 517244049 = 27310^2 + 22743^2 .

It is a cyclic number.

It is not a de Polignac number, because 1263080149 - 2³ = 1263080141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263080141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631540074 + 631540075.

It is an arithmetic number, because the mean of its divisors is an integer number (631540075).

Almost surely, 2^1263080149 is an apocalyptic number.

It is an amenable number.

1263080149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263080149 is an equidigital number, since it uses as much as digits as its factorization.

1263080149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1263080149 is about 35539.8388994660. The cubic root of 1263080149 is about 1080.9616916991.

The spelling of 1263080149 in words is "one billion, two hundred sixty-three million, eighty thousand, one hundred forty-nine".