150506645 has 4 divisors (see below), whose sum is σ = 180607980. Its totient is φ = 120405312.

The previous prime is 150506617. The next prime is 150506647. The reversal of 150506645 is 546605051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32001649 + 118504996 = 5657^2 + 10886^2 .

It is a cyclic number.

It is not a de Polignac number, because 150506645 - 2¹² = 150502549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150506647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15050660 + ... + 15050669.

It is an arithmetic number, because the mean of its divisors is an integer number (45151995).

Almost surely, 2^150506645 is an apocalyptic number.

It is an amenable number.

150506645 is a deficient number, since it is larger than the sum of its proper divisors (30101335).

150506645 is an equidigital number, since it uses as much as digits as its factorization.

150506645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30101334.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 150506645 is about 12268.1149733771. The cubic root of 150506645 is about 531.9268241731.

It can be divided in two parts, 150506 and 645, that added together give a palindrome (151151).

The spelling of 150506645 in words is "one hundred fifty million, five hundred six thousand, six hundred forty-five".