1500151561 has 2 divisors, whose sum is σ = 1500151562. Its totient is φ = 1500151560.

The previous prime is 1500151531. The next prime is 1500151567. The reversal of 1500151561 is 1651510051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1378711161 + 121440400 = 37131^2 + 11020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500151561 - 2¹³ = 1500143369 is a prime.

It is not a weakly prime, because it can be changed into another prime (1500151567) 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, 750075780 + 750075781.

It is an arithmetic number, because the mean of its divisors is an integer number (750075781).

Almost surely, 2^1500151561 is an apocalyptic number.

It is an amenable number.

1500151561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500151561 is an equidigital number, since it uses as much as digits as its factorization.

1500151561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 25.

The square root of 1500151561 is about 38731.7900567480. The cubic root of 1500151561 is about 1144.7527954850.

The spelling of 1500151561 in words is "one billion, five hundred million, one hundred fifty-one thousand, five hundred sixty-one".