1267297045 has 48 divisors (see below), whose sum is σ = 1908778608. Its totient is φ = 802314240.

The previous prime is 1267297043. The next prime is 1267297051. The reversal of 1267297045 is 5407927621.

It can be written as a sum of positive squares in 8 ways, for example, as 45724644 + 1221572401 = 6762^2 + 34951^2 .

It is not a de Polignac number, because 1267297045 - 2¹ = 1267297043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1267296992 and 1267297010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267297043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 217875 + ... + 223615.

It is an arithmetic number, because the mean of its divisors is an integer number (39766221).

Almost surely, 2^1267297045 is an apocalyptic number.

It is an amenable number.

1267297045 is a deficient number, since it is larger than the sum of its proper divisors (641481563).

1267297045 is a wasteful number, since it uses less digits than its factorization.

1267297045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830 (or 5823 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 1267297045 is about 35599.1157895811. The cubic root of 1267297045 is about 1082.1633150139.

The spelling of 1267297045 in words is "one billion, two hundred sixty-seven million, two hundred ninety-seven thousand, forty-five".