1291067063 has 16 divisors (see below), whose sum is σ = 1526848512. Its totient is φ = 1076220000.

The previous prime is 1291067003. The next prime is 1291067189. The reversal of 1291067063 is 3607601921.

It is a cyclic number.

It is not a de Polignac number, because 1291067063 - 2¹⁰ = 1291066039 is a prime.

It is a super-2 number, since 2×1291067063² = 3333708322326891938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291067003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8303 + ... + 51488.

It is an arithmetic number, because the mean of its divisors is an integer number (95428032).

Almost surely, 2^1291067063 is an apocalyptic number.

1291067063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1291067063 is a deficient number, since it is larger than the sum of its proper divisors (235781449).

1291067063 is a wasteful number, since it uses less digits than its factorization.

1291067063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59966.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 1291067063 is about 35931.4216668364. The cubic root of 1291067063 is about 1088.8873034851.

Adding to 1291067063 its reverse (3607601921), we get a palindrome (4898668984).

The spelling of 1291067063 in words is "one billion, two hundred ninety-one million, sixty-seven thousand, sixty-three".