149406169 has 16 divisors (see below), whose sum is σ = 166561920. Its totient is φ = 132880000.

The previous prime is 149406163. The next prime is 149406197. The reversal of 149406169 is 961604941.

It is not a de Polignac number, because 149406169 - 2³ = 149406161 is a prime.

It is a super-3 number, since 3×149406169³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149406161) 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, 98124 + ... + 99634.

It is an arithmetic number, because the mean of its divisors is an integer number (10410120).

Almost surely, 2^149406169 is an apocalyptic number.

It is an amenable number.

149406169 is a deficient number, since it is larger than the sum of its proper divisors (17155751).

149406169 is a wasteful number, since it uses less digits than its factorization.

149406169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 149406169 is about 12223.1816234563. The cubic root of 149406169 is about 530.6272021775.

The spelling of 149406169 in words is "one hundred forty-nine million, four hundred six thousand, one hundred sixty-nine".