150642605 has 4 divisors (see below), whose sum is σ = 180771132. Its totient is φ = 120514080.

The previous prime is 150642601. The next prime is 150642607. The reversal of 150642605 is 506246051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506246051 = 19 ⋅26644529.

It can be written as a sum of positive squares in 2 ways, for example, as 50282281 + 100360324 = 7091^2 + 10018^2 .

It is not a de Polignac number, because 150642605 - 2² = 150642601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150642601) 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, 15064256 + ... + 15064265.

It is an arithmetic number, because the mean of its divisors is an integer number (45192783).

Almost surely, 2^150642605 is an apocalyptic number.

It is an amenable number.

150642605 is a deficient number, since it is larger than the sum of its proper divisors (30128527).

150642605 is an equidigital number, since it uses as much as digits as its factorization.

150642605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30128526.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 150642605 is about 12273.6549161201. The cubic root of 150642605 is about 532.0869477897.

Adding to 150642605 its reverse (506246051), we get a palindrome (656888656).

The spelling of 150642605 in words is "one hundred fifty million, six hundred forty-two thousand, six hundred five".