149501665 has 8 divisors (see below), whose sum is σ = 179483688. Its totient is φ = 119546880.

The previous prime is 149501663. The next prime is 149501701. The reversal of 149501665 is 566105941.

149501665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 37797904 + 111703761 = 6148^2 + 10569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149501665 - 2¹ = 149501663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149501663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8335 + ... + 19195.

It is an arithmetic number, because the mean of its divisors is an integer number (22435461).

Almost surely, 2^149501665 is an apocalyptic number.

It is an amenable number.

149501665 is a deficient number, since it is larger than the sum of its proper divisors (29982023).

149501665 is a wasteful number, since it uses less digits than its factorization.

149501665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13619.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 149501665 is about 12227.0873473612. The cubic root of 149501665 is about 530.7402318319.

The spelling of 149501665 in words is "one hundred forty-nine million, five hundred one thousand, six hundred sixty-five".