1247275330 has 32 divisors (see below), whose sum is σ = 2700869760. Its totient is φ = 405129600.

The previous prime is 1247275319. The next prime is 1247275333. The reversal of 1247275330 is 335727421.

It is not an unprimeable number, because it can be changed into a prime (1247275333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467571 + ... + 470230.

It is an arithmetic number, because the mean of its divisors is an integer number (84402180).

Almost surely, 2^1247275330 is an apocalyptic number.

1247275330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1247275330 is an abundant number, since it is smaller than the sum of its proper divisors (1453594430).

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

1247275330 is a wasteful number, since it uses less digits than its factorization.

1247275330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937834.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 1247275330 is about 35316.7853859889. The cubic root of 1247275330 is about 1076.4340925032.

The spelling of 1247275330 in words is "one billion, two hundred forty-seven million, two hundred seventy-five thousand, three hundred thirty".