1500145081 has 2 divisors, whose sum is σ = 1500145082. Its totient is φ = 1500145080.

The previous prime is 1500145069. The next prime is 1500145117. The reversal of 1500145081 is 1805410051.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932752681 + 567392400 = 30541^2 + 23820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500145081 - 2²⁵ = 1466590649 is a prime.

It is a super-2 number, since 2×1500145081² = 4500870528096993122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1500145181) 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 as a sum of consecutive naturals, namely, 750072540 + 750072541.

It is an arithmetic number, because the mean of its divisors is an integer number (750072541).

Almost surely, 2^1500145081 is an apocalyptic number.

It is an amenable number.

1500145081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500145081 is an equidigital number, since it uses as much as digits as its factorization.

1500145081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 1500145081 is about 38731.7064044434. The cubic root of 1500145081 is about 1144.7511472051.

The spelling of 1500145081 in words is "one billion, five hundred million, one hundred forty-five thousand, eighty-one".