1500138331 has 8 divisors (see below), whose sum is σ = 1580633600. Its totient is φ = 1419797160.

The previous prime is 1500138239. The next prime is 1500138337. The reversal of 1500138331 is 1338310051.

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

It is a cyclic number.

It is not a de Polignac number, because 1500138331 - 2¹³ = 1500130139 is a prime.

It is a super-2 number, since 2×1500138331² = 4500830024270931122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1500138296 and 1500138305.

It is not an unprimeable number, because it can be changed into a prime (1500138337) 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 7 ways as a sum of consecutive naturals, for example, 18255 + ... + 57736.

It is an arithmetic number, because the mean of its divisors is an integer number (197579200).

Almost surely, 2^1500138331 is an apocalyptic number.

1500138331 is a deficient number, since it is larger than the sum of its proper divisors (80495269).

1500138331 is a wasteful number, since it uses less digits than its factorization.

1500138331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77049.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1500138331 is about 38731.6192664340. The cubic root of 1500138331 is about 1144.7494302419.

Adding to 1500138331 its reverse (1338310051), we get a palindrome (2838448382).

The spelling of 1500138331 in words is "one billion, five hundred million, one hundred thirty-eight thousand, three hundred thirty-one".