149170609 has 16 divisors (see below), whose sum is σ = 175435648. Its totient is φ = 124198272.

The previous prime is 149170601. The next prime is 149170633. The reversal of 149170609 is 906071941.

It is a cyclic number.

It is not a de Polignac number, because 149170609 - 2³ = 149170601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149170601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32059 + ... + 36415.

It is an arithmetic number, because the mean of its divisors is an integer number (10964728).

Almost surely, 2^149170609 is an apocalyptic number.

It is an amenable number.

149170609 is a deficient number, since it is larger than the sum of its proper divisors (26265039).

149170609 is an equidigital number, since it uses as much as digits as its factorization.

149170609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4504.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 149170609 is about 12213.5420333333. The cubic root of 149170609 is about 530.3481858274.

The spelling of 149170609 in words is "one hundred forty-nine million, one hundred seventy thousand, six hundred nine".