1263477541 has 2 divisors, whose sum is σ = 1263477542. Its totient is φ = 1263477540.

The previous prime is 1263477529. The next prime is 1263477581. The reversal of 1263477541 is 1457743621.

It is an a-pointer prime, because the next prime (1263477581) can be obtained adding 1263477541 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 800324100 + 463153441 = 28290^2 + 21521^2 .

It is a cyclic number.

It is not a de Polignac number, because 1263477541 - 2¹³ = 1263469349 is a prime.

It is a super-2 number, since 2×1263477541² = 3192750993222813362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1263477494 and 1263477503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263477581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631738770 + 631738771.

It is an arithmetic number, because the mean of its divisors is an integer number (631738771).

Almost surely, 2^1263477541 is an apocalyptic number.

It is an amenable number.

1263477541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263477541 is an equidigital number, since it uses as much as digits as its factorization.

1263477541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 1263477541 is about 35545.4292560942. The cubic root of 1263477541 is about 1081.0750443597.

The spelling of 1263477541 in words is "one billion, two hundred sixty-three million, four hundred seventy-seven thousand, five hundred forty-one".