1267052155 has 8 divisors (see below), whose sum is σ = 1541877984. Its totient is φ = 999364800.

The previous prime is 1267052153. The next prime is 1267052159. The reversal of 1267052155 is 5512507621.

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

It is not a de Polignac number, because 1267052155 - 2¹ = 1267052153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1267052155.

It is not an unprimeable number, because it can be changed into a prime (1267052153) 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, 1784226 + ... + 1784935.

It is an arithmetic number, because the mean of its divisors is an integer number (192734748).

Almost surely, 2^1267052155 is an apocalyptic number.

1267052155 is a deficient number, since it is larger than the sum of its proper divisors (274825829).

1267052155 is an equidigital number, since it uses as much as digits as its factorization.

1267052155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569237.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 1267052155 is about 35595.6760716804. The cubic root of 1267052155 is about 1082.0936054834.

Adding to 1267052155 its reverse (5512507621), we get a palindrome (6779559776).

The spelling of 1267052155 in words is "one billion, two hundred sixty-seven million, fifty-two thousand, one hundred fifty-five".