1230149860 has 12 divisors (see below), whose sum is σ = 2583314748. Its totient is φ = 492059936.

The previous prime is 1230149849. The next prime is 1230149863. The reversal of 1230149860 is 689410321.

It can be written as a sum of positive squares in 2 ways, for example, as 796594176 + 433555684 = 28224^2 + 20822^2 .

It is not an unprimeable number, because it can be changed into a prime (1230149863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30753727 + ... + 30753766.

It is an arithmetic number, because the mean of its divisors is an integer number (215276229).

Almost surely, 2^1230149860 is an apocalyptic number.

1230149860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230149860 is an abundant number, since it is smaller than the sum of its proper divisors (1353164888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230149860 is a wasteful number, since it uses less digits than its factorization.

1230149860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61507502 (or 61507500 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1230149860 is about 35073.4922698040. The cubic root of 1230149860 is about 1071.4847817960.

The spelling of 1230149860 in words is "one billion, two hundred thirty million, one hundred forty-nine thousand, eight hundred sixty".