149439465 has 192 divisors, whose sum is σ = 344736000. Its totient is φ = 60963840.

The previous prime is 149439439. The next prime is 149439473. The reversal of 149439465 is 564934941.

149439465 is a `hidden beast` number, since 149 + 43 + 9 + 465 = 666.

It is not a de Polignac number, because 149439465 - 2⁸ = 149439209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 149439465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3644845 + ... + 3644885.

It is an arithmetic number, because the mean of its divisors is an integer number (1795500).

Almost surely, 2^149439465 is an apocalyptic number.

149439465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149439465 is an abundant number, since it is smaller than the sum of its proper divisors (195296535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149439465 is a wasteful number, since it uses less digits than its factorization.

149439465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 104 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 149439465 is about 12224.5435497609. The cubic root of 149439465 is about 530.6666169958. Note that the first 4 decimals are identical.

The spelling of 149439465 in words is "one hundred forty-nine million, four hundred thirty-nine thousand, four hundred sixty-five".