149461272 has 72 divisors (see below), whose sum is σ = 413130900. Its totient is φ = 48814272.

The previous prime is 149461253. The next prime is 149461283. The reversal of 149461272 is 272164941.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 201879 + ... + 202617.

Almost surely, 2^149461272 is an apocalyptic number.

149461272 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 149461272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206565450).

149461272 is an abundant number, since it is smaller than the sum of its proper divisors (263669628).

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

149461272 is a wasteful number, since it uses less digits than its factorization.

149461272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 797 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 149461272 is about 12225.4354523673. The cubic root of 149461272 is about 530.6924283036.

The spelling of 149461272 in words is "one hundred forty-nine million, four hundred sixty-one thousand, two hundred seventy-two".