1331507000 has 64 divisors (see below), whose sum is σ = 3132324000. Its totient is φ = 529766400.

The previous prime is 1331506991. The next prime is 1331507011. The reversal of 1331507000 is 7051331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189551 + ... + 196449.

Almost surely, 2^1331507000 is an apocalyptic number.

1331507000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331507000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566162000).

1331507000 is an abundant number, since it is smaller than the sum of its proper divisors (1800817000).

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

1331507000 is a wasteful number, since it uses less digits than its factorization.

1331507000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113 (or 7099 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 1331507000 is about 36489.8204983253. The cubic root of 1331507000 is about 1100.1396516911.

Adding to 1331507000 its reverse (7051331), we get a palindrome (1338558331).

The spelling of 1331507000 in words is "one billion, three hundred thirty-one million, five hundred seven thousand".