149641169 has 16 divisors (see below), whose sum is σ = 161568000. Its totient is φ = 138162960.

The previous prime is 149641159. The next prime is 149641171. The reversal of 149641169 is 961146941.

It is a cyclic number.

It is not a de Polignac number, because 149641169 - 2⁴ = 149641153 is a prime.

It is a super-2 number, since 2×149641169² = 44784958919373122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149641109) 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, 146342 + ... + 147360.

It is an arithmetic number, because the mean of its divisors is an integer number (10098000).

Almost surely, 2^149641169 is an apocalyptic number.

149641169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

149641169 is a deficient number, since it is larger than the sum of its proper divisors (11926831).

149641169 is a wasteful number, since it uses less digits than its factorization.

149641169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its digits is 46656, while the sum is 41.

The square root of 149641169 is about 12232.7907282026. The cubic root of 149641169 is about 530.9052631434.

The spelling of 149641169 in words is "one hundred forty-nine million, six hundred forty-one thousand, one hundred sixty-nine".