150689617 has 4 divisors (see below), whose sum is σ = 162281140. Its totient is φ = 139098096.

The previous prime is 150689573. The next prime is 150689657. The reversal of 150689617 is 716986051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 716986051 = 331 ⋅2166121.

It can be written as a sum of positive squares in 2 ways, for example, as 86192656 + 64496961 = 9284^2 + 8031^2 .

It is a cyclic number.

It is not a de Polignac number, because 150689617 - 2⁷ = 150689489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150689657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5795742 + ... + 5795767.

It is an arithmetic number, because the mean of its divisors is an integer number (40570285).

Almost surely, 2^150689617 is an apocalyptic number.

It is an amenable number.

150689617 is a deficient number, since it is larger than the sum of its proper divisors (11591523).

150689617 is a wasteful number, since it uses less digits than its factorization.

150689617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11591522.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 150689617 is about 12275.5699256694. The cubic root of 150689617 is about 532.1422926237.

The spelling of 150689617 in words is "one hundred fifty million, six hundred eighty-nine thousand, six hundred seventeen".