150561517 has 2 divisors, whose sum is σ = 150561518. Its totient is φ = 150561516.

The previous prime is 150561497. The next prime is 150561563. The reversal of 150561517 is 715165051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86657481 + 63904036 = 9309^2 + 7994^2 .

It is an emirp because it is prime and its reverse (715165051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150561517 is a prime.

It is a super-3 number, since 3×150561517³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150561577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75280758 + 75280759.

It is an arithmetic number, because the mean of its divisors is an integer number (75280759).

Almost surely, 2^150561517 is an apocalyptic number.

It is an amenable number.

150561517 is a deficient number, since it is larger than the sum of its proper divisors (1).

150561517 is an equidigital number, since it uses as much as digits as its factorization.

150561517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 31.

The square root of 150561517 is about 12270.3511359700. The cubic root of 150561517 is about 531.9914599511.

The spelling of 150561517 in words is "one hundred fifty million, five hundred sixty-one thousand, five hundred seventeen".