150117817 has 2 divisors, whose sum is σ = 150117818. Its totient is φ = 150117816.

The previous prime is 150117797. The next prime is 150117881. The reversal of 150117817 is 718711051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80712256 + 69405561 = 8984^2 + 8331^2 .

It is a cyclic number.

It is not a de Polignac number, because 150117817 - 2¹⁵ = 150085049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (150117017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75058908 + 75058909.

It is an arithmetic number, because the mean of its divisors is an integer number (75058909).

Almost surely, 2^150117817 is an apocalyptic number.

It is an amenable number.

150117817 is a deficient number, since it is larger than the sum of its proper divisors (1).

150117817 is an equidigital number, since it uses as much as digits as its factorization.

150117817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 31.

The square root of 150117817 is about 12252.2576286985. The cubic root of 150117817 is about 531.4683584578.

Adding to 150117817 its reverse (718711051), we get a palindrome (868828868).

The spelling of 150117817 in words is "one hundred fifty million, one hundred seventeen thousand, eight hundred seventeen".