1229387853 has 8 divisors (see below), whose sum is σ = 1641834400. Its totient is φ = 818266608.

The previous prime is 1229387851. The next prime is 1229387867. The reversal of 1229387853 is 3587839221.

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 1229387853 - 2¹ = 1229387851 is a prime.

It is a super-2 number, since 2×1229387853² = 3022788986207899218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229387851) 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, 329158 + ... + 332871.

It is an arithmetic number, because the mean of its divisors is an integer number (205229300).

Almost surely, 2^1229387853 is an apocalyptic number.

It is an amenable number.

1229387853 is a deficient number, since it is larger than the sum of its proper divisors (412446547).

1229387853 is an equidigital number, since it uses as much as digits as its factorization.

1229387853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662651.

The product of its digits is 725760, while the sum is 48.

The square root of 1229387853 is about 35062.6275826556. The cubic root of 1229387853 is about 1071.2634950579.

The spelling of 1229387853 in words is "one billion, two hundred twenty-nine million, three hundred eighty-seven thousand, eight hundred fifty-three".