1230655129 has 8 divisors (see below), whose sum is σ = 1362571488. Its totient is φ = 1102078560.

The previous prime is 1230655123. The next prime is 1230655133. The reversal of 1230655129 is 9215560321.

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

It is not a de Polignac number, because 1230655129 - 2⁷ = 1230655001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230655094 and 1230655103.

It is not an unprimeable number, because it can be changed into a prime (1230655123) 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, 834172 + ... + 835645.

It is an arithmetic number, because the mean of its divisors is an integer number (170321436).

Almost surely, 2^1230655129 is an apocalyptic number.

It is an amenable number.

1230655129 is a deficient number, since it is larger than the sum of its proper divisors (131916359).

1230655129 is a wasteful number, since it uses less digits than its factorization.

1230655129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669895.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1230655129 is about 35080.6945341736. The cubic root of 1230655129 is about 1071.6314614691.

The spelling of 1230655129 in words is "one billion, two hundred thirty million, six hundred fifty-five thousand, one hundred twenty-nine".