150121717 has 8 divisors (see below), whose sum is σ = 158460800. Its totient is φ = 141826464.

The previous prime is 150121703. The next prime is 150121771. The reversal of 150121717 is 717121051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150121717 - 2⁷ = 150121589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150121691 and 150121700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150121117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3792 + ... + 17737.

It is an arithmetic number, because the mean of its divisors is an integer number (19807600).

Almost surely, 2^150121717 is an apocalyptic number.

It is an amenable number.

150121717 is a deficient number, since it is larger than the sum of its proper divisors (8339083).

150121717 is a wasteful number, since it uses less digits than its factorization.

150121717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21915.

The product of its (nonzero) digits is 490, while the sum is 25.

The square root of 150121717 is about 12252.4167820067. The cubic root of 150121717 is about 531.4729608621.

Adding to 150121717 its reverse (717121051), we get a palindrome (867242768).

The spelling of 150121717 in words is "one hundred fifty million, one hundred twenty-one thousand, seven hundred seventeen".