1331197470 has 64 divisors (see below), whose sum is σ = 3645829440. Its totient is φ = 345389184.

The previous prime is 1331197463. The next prime is 1331197477. The reversal of 1331197470 is 747911331.

It is an interprime number because it is at equal distance from previous prime (1331197463) and next prime (1331197477).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331197477) 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 31 ways as a sum of consecutive naturals, for example, 56637 + ... + 76616.

It is an arithmetic number, because the mean of its divisors is an integer number (56966085).

Almost surely, 2^1331197470 is an apocalyptic number.

1331197470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331197470 is an abundant number, since it is smaller than the sum of its proper divisors (2314631970).

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

1331197470 is a wasteful number, since it uses less digits than its factorization.

1331197470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133306 (or 133300 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 1331197470 is about 36485.5789319561. The cubic root of 1331197470 is about 1100.0543967590.

The spelling of 1331197470 in words is "one billion, three hundred thirty-one million, one hundred ninety-seven thousand, four hundred seventy".