150661605 has 8 divisors (see below), whose sum is σ = 241058592. Its totient is φ = 80352848.

The previous prime is 150661591. The next prime is 150661613. The reversal of 150661605 is 506166051.

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 150661605 - 2¹⁵ = 150628837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5022039 + ... + 5022068.

It is an arithmetic number, because the mean of its divisors is an integer number (30132324).

Almost surely, 2^150661605 is an apocalyptic number.

150661605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

150661605 is a deficient number, since it is larger than the sum of its proper divisors (90396987).

150661605 is a wasteful number, since it uses less digits than its factorization.

150661605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10044115.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 150661605 is about 12274.4289072853. The cubic root of 150661605 is about 532.1093169086.

The spelling of 150661605 in words is "one hundred fifty million, six hundred sixty-one thousand, six hundred five".