1331382007 has 4 divisors (see below), whose sum is σ = 1336444560. Its totient is φ = 1326319456.

The previous prime is 1331381983. The next prime is 1331382037. The reversal of 1331382007 is 7002831331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7002831331 = 109 ⋅64246159.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331382007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331382037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530882 + ... + 2531407.

It is an arithmetic number, because the mean of its divisors is an integer number (334111140).

Almost surely, 2^1331382007 is an apocalyptic number.

1331382007 is a deficient number, since it is larger than the sum of its proper divisors (5062553).

1331382007 is an equidigital number, since it uses as much as digits as its factorization.

1331382007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062552.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1331382007 is about 36488.1077475936. The cubic root of 1331382007 is about 1100.1052260219.

The spelling of 1331382007 in words is "one billion, three hundred thirty-one million, three hundred eighty-two thousand, seven".