149452812 has 18 divisors (see below), whose sum is σ = 377783588. Its totient is φ = 49817592.

The previous prime is 149452769. The next prime is 149452837. The reversal of 149452812 is 218254941.

149452812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×149452812² = 44672286029414688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4151467 = 149452812 / (1 + 4 + 9 + 4 + 5 + 2 + 8 + 1 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2075698 + ... + 2075769.

Almost surely, 2^149452812 is an apocalyptic number.

149452812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149452812 is an abundant number, since it is smaller than the sum of its proper divisors (228330776).

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

149452812 is a wasteful number, since it uses less digits than its factorization.

149452812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151477 (or 4151472 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 149452812 is about 12225.0894475255. The cubic root of 149452812 is about 530.6824151352.

The spelling of 149452812 in words is "one hundred forty-nine million, four hundred fifty-two thousand, eight hundred twelve".