149172672 has 84 divisors (see below), whose sum is σ = 433896008. Its totient is φ = 45196800.

The previous prime is 149172631. The next prime is 149172703. The reversal of 149172672 is 276271941.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 149172672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20022 + ... + 26442.

Almost surely, 2^149172672 is an apocalyptic number.

149172672 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 149172672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216948004).

149172672 is an abundant number, since it is smaller than the sum of its proper divisors (284723336).

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

149172672 is a wasteful number, since it uses less digits than its factorization.

149172672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6458 (or 6437 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 149172672 is about 12213.6264884759. The cubic root of 149172672 is about 530.3506306863.

The spelling of 149172672 in words is "one hundred forty-nine million, one hundred seventy-two thousand, six hundred seventy-two".