1312154330 has 8 divisors (see below), whose sum is σ = 2361877812. Its totient is φ = 524861728.

The previous prime is 1312154297. The next prime is 1312154339. The reversal of 1312154330 is 334512131.

It can be written as a sum of positive squares in 2 ways, for example, as 1285724449 + 26429881 = 35857^2 + 5141^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1312154296 and 1312154305.

It is not an unprimeable number, because it can be changed into a prime (1312154339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65607707 + ... + 65607726.

Almost surely, 2^1312154330 is an apocalyptic number.

1312154330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312154330 is a deficient number, since it is larger than the sum of its proper divisors (1049723482).

1312154330 is a wasteful number, since it uses less digits than its factorization.

1312154330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131215440.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1312154330 is about 36223.6708520823. The cubic root of 1312154330 is about 1094.7836579052.

Adding to 1312154330 its reverse (334512131), we get a palindrome (1646666461).

The spelling of 1312154330 in words is "one billion, three hundred twelve million, one hundred fifty-four thousand, three hundred thirty".