1208129253 has 8 divisors (see below), whose sum is σ = 1638141600. Its totient is φ = 791768208.

The previous prime is 1208129243. The next prime is 1208129297. The reversal of 1208129253 is 3529218021.

It is a happy number.

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

It is not a de Polignac number, because 1208129253 - 2⁸ = 1208128997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208129243) 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, 3412618 + ... + 3412971.

It is an arithmetic number, because the mean of its divisors is an integer number (204767700).

Almost surely, 2^1208129253 is an apocalyptic number.

It is an amenable number.

1208129253 is a deficient number, since it is larger than the sum of its proper divisors (430012347).

1208129253 is an equidigital number, since it uses as much as digits as its factorization.

1208129253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6825651.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1208129253 is about 34758.1537628223. The cubic root of 1208129253 is about 1065.0527876147.

The spelling of 1208129253 in words is "one billion, two hundred eight million, one hundred twenty-nine thousand, two hundred fifty-three".