1230151209 has 8 divisors (see below), whose sum is σ = 1874516160. Its totient is φ = 702943536.

The previous prime is 1230151201. The next prime is 1230151231. The reversal of 1230151209 is 9021510321.

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

It is not a de Polignac number, because 1230151209 - 2³ = 1230151201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230151201) 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, 29289294 + ... + 29289335.

It is an arithmetic number, because the mean of its divisors is an integer number (234314520).

Almost surely, 2^1230151209 is an apocalyptic number.

It is an amenable number.

1230151209 is a deficient number, since it is larger than the sum of its proper divisors (644364951).

1230151209 is an equidigital number, since it uses as much as digits as its factorization.

1230151209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58578639.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1230151209 is about 35073.5115008463. The cubic root of 1230151209 is about 1071.4851734643.

The spelling of 1230151209 in words is "one billion, two hundred thirty million, one hundred fifty-one thousand, two hundred nine".