149313216 has 112 divisors (see below), whose sum is σ = 429223424. Its totient is φ = 45536256.

The previous prime is 149313211. The next prime is 149313223. The reversal of 149313216 is 612313941.

It is not an unprimeable number, because it can be changed into a prime (149313211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406665 + ... + 407031.

It is an arithmetic number, because the mean of its divisors is an integer number (3832352).

Almost surely, 2^149313216 is an apocalyptic number.

149313216 is a gapful number since it is divisible by the number (16) 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 149313216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214611712).

149313216 is an abundant number, since it is smaller than the sum of its proper divisors (279910208).

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

149313216 is a wasteful number, since it uses less digits than its factorization.

149313216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 548 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 149313216 is about 12219.3787076103. The cubic root of 149313216 is about 530.5171361674.

The spelling of 149313216 in words is "one hundred forty-nine million, three hundred thirteen thousand, two hundred sixteen".