149653272 has 96 divisors (see below), whose sum is σ = 412577280. Its totient is φ = 45144000.

The previous prime is 149653247. The next prime is 149653289. The reversal of 149653272 is 272356941.

It is a super-2 number, since 2×149653272² = 44792203640611968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149653272.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 198897 + ... + 199647.

It is an arithmetic number, because the mean of its divisors is an integer number (4297680).

Almost surely, 2^149653272 is an apocalyptic number.

149653272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149653272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206288640).

149653272 is an abundant number, since it is smaller than the sum of its proper divisors (262924008).

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

149653272 is a wasteful number, since it uses less digits than its factorization.

149653272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 798 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 149653272 is about 12233.2854131668. The cubic root of 149653272 is about 530.9195759898.

The spelling of 149653272 in words is "one hundred forty-nine million, six hundred fifty-three thousand, two hundred seventy-two".