150661305 has 12 divisors (see below), whose sum is σ = 261146340. Its totient is φ = 80352672.

The previous prime is 150661297. The next prime is 150661319. The reversal of 150661305 is 503166051.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34539129 + 116122176 = 5877^2 + 10776^2 .

It is not a de Polignac number, because 150661305 - 2³ = 150661297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1673970 + ... + 1674059.

It is an arithmetic number, because the mean of its divisors is an integer number (21762195).

Almost surely, 2^150661305 is an apocalyptic number.

150661305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

150661305 is a deficient number, since it is larger than the sum of its proper divisors (110485035).

150661305 is a wasteful number, since it uses less digits than its factorization.

150661305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348040 (or 3348037 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 150661305 is about 12274.4166867514. The cubic root of 150661305 is about 532.1089637266.

The spelling of 150661305 in words is "one hundred fifty million, six hundred sixty-one thousand, three hundred five".