1230819949 has 8 divisors (see below), whose sum is σ = 1255544928. Its totient is φ = 1206282000.

The previous prime is 1230819923. The next prime is 1230819971. The reversal of 1230819949 is 9499180321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1230819949 - 2²³ = 1222431341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230819899 and 1230819908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230819979) 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, 33427 + ... + 59824.

It is an arithmetic number, because the mean of its divisors is an integer number (156943116).

Almost surely, 2^1230819949 is an apocalyptic number.

It is an amenable number.

1230819949 is a deficient number, since it is larger than the sum of its proper divisors (24724979).

1230819949 is an equidigital number, since it uses as much as digits as its factorization.

1230819949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93515.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 1230819949 is about 35083.0436108386. The cubic root of 1230819949 is about 1071.6793000577.

The spelling of 1230819949 in words is "one billion, two hundred thirty million, eight hundred nineteen thousand, nine hundred forty-nine".