149894272 has 64 divisors (see below), whose sum is σ = 337089600. Its totient is φ = 65766400.

The previous prime is 149894257. The next prime is 149894273. The reversal of 149894272 is 272498941.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (149894273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38997 + ... + 42667.

It is an arithmetic number, because the mean of its divisors is an integer number (5267025).

Almost surely, 2^149894272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149894272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168544800).

149894272 is an abundant number, since it is smaller than the sum of its proper divisors (187195328).

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

149894272 is a wasteful number, since it uses less digits than its factorization.

149894272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725 (or 3713 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 149894272 is about 12243.1316255278. The cubic root of 149894272 is about 531.2044188436.

The spelling of 149894272 in words is "one hundred forty-nine million, eight hundred ninety-four thousand, two hundred seventy-two".