1500135145 has 4 divisors (see below), whose sum is σ = 1800162180. Its totient is φ = 1200108112.

The previous prime is 1500135137. The next prime is 1500135149. The reversal of 1500135145 is 5415310051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 260531881 + 1239603264 = 16141^2 + 35208^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500135145 - 2³ = 1500135137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1500135149) 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, 150013510 + ... + 150013519.

It is an arithmetic number, because the mean of its divisors is an integer number (450040545).

Almost surely, 2^1500135145 is an apocalyptic number.

It is an amenable number.

1500135145 is a deficient number, since it is larger than the sum of its proper divisors (300027035).

1500135145 is an equidigital number, since it uses as much as digits as its factorization.

1500135145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300027034.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1500135145 is about 38731.5781372254. The cubic root of 1500135145 is about 1144.7486198334.

Adding to 1500135145 its reverse (5415310051), we get a palindrome (6915445196).

The spelling of 1500135145 in words is "one billion, five hundred million, one hundred thirty-five thousand, one hundred forty-five".