1260157267 has 8 divisors (see below), whose sum is σ = 1264126400. Its totient is φ = 1256195304.

The previous prime is 1260157247. The next prime is 1260157289. The reversal of 1260157267 is 7627510621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1260157267 - 2⁷ = 1260157139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260157237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797284 + ... + 798862.

It is an arithmetic number, because the mean of its divisors is an integer number (158015800).

Almost surely, 2^1260157267 is an apocalyptic number.

1260157267 is a deficient number, since it is larger than the sum of its proper divisors (3969133).

1260157267 is a wasteful number, since it uses less digits than its factorization.

1260157267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 1260157267 is about 35498.6938773809. The cubic root of 1260157267 is about 1080.1272332384.

Adding to 1260157267 its reverse (7627510621), we get a palindrome (8887667888).

The spelling of 1260157267 in words is "one billion, two hundred sixty million, one hundred fifty-seven thousand, two hundred sixty-seven".