149505585 has 32 divisors (see below), whose sum is σ = 260496000. Its totient is φ = 72930816.

The previous prime is 149505583. The next prime is 149505593. The reversal of 149505585 is 585505941.

It is a happy number.

It is not a de Polignac number, because 149505585 - 2¹ = 149505583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149505583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 780 + ... + 17309.

It is an arithmetic number, because the mean of its divisors is an integer number (8140500).

Almost surely, 2^149505585 is an apocalyptic number.

149505585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149505585 is a deficient number, since it is larger than the sum of its proper divisors (110990415).

149505585 is a wasteful number, since it uses less digits than its factorization.

149505585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18145.

The product of its (nonzero) digits is 180000, while the sum is 42.

The square root of 149505585 is about 12227.2476461385. The cubic root of 149505585 is about 530.7448705395.

The spelling of 149505585 in words is "one hundred forty-nine million, five hundred five thousand, five hundred eighty-five".