1231298229 has 8 divisors (see below), whose sum is σ = 1876264000. Its totient is φ = 703598976.

The previous prime is 1231298209. The next prime is 1231298231. The reversal of 1231298229 is 9228921321.

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

It is not a de Polignac number, because 1231298229 - 2⁵ = 1231298197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231298209) 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, 29316604 + ... + 29316645.

It is an arithmetic number, because the mean of its divisors is an integer number (234533000).

Almost surely, 2^1231298229 is an apocalyptic number.

It is an amenable number.

1231298229 is a deficient number, since it is larger than the sum of its proper divisors (644965771).

1231298229 is an equidigital number, since it uses as much as digits as its factorization.

1231298229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58633259.

The product of its digits is 31104, while the sum is 39.

The square root of 1231298229 is about 35089.8593471105. The cubic root of 1231298229 is about 1071.8180954460.

The spelling of 1231298229 in words is "one billion, two hundred thirty-one million, two hundred ninety-eight thousand, two hundred twenty-nine".