1268669153 has 4 divisors (see below), whose sum is σ = 1290172080. Its totient is φ = 1247166228.

The previous prime is 1268669089. The next prime is 1268669179. The reversal of 1268669153 is 3519668621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1268669153 - 2⁶ = 1268669089 is a prime.

It is a super-3 number, since 3×1268669153³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1268669098 and 1268669107.

It is not an unprimeable number, because it can be changed into a prime (1268663153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10751375 + ... + 10751492.

It is an arithmetic number, because the mean of its divisors is an integer number (322543020).

Almost surely, 2^1268669153 is an apocalyptic number.

It is an amenable number.

1268669153 is a deficient number, since it is larger than the sum of its proper divisors (21502927).

1268669153 is an equidigital number, since it uses as much as digits as its factorization.

1268669153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21502926.

The product of its digits is 466560, while the sum is 47.

The square root of 1268669153 is about 35618.3822344587. The cubic root of 1268669153 is about 1082.5537284499.

The spelling of 1268669153 in words is "one billion, two hundred sixty-eight million, six hundred sixty-nine thousand, one hundred fifty-three".