149393916 has 96 divisors (see below), whose sum is σ = 448878080. Its totient is φ = 42083712.

The previous prime is 149393891. The next prime is 149393917. The reversal of 149393916 is 619393941.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149393917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53835 + ... + 56541.

Almost surely, 2^149393916 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 149393916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224439040).

149393916 is an abundant number, since it is smaller than the sum of its proper divisors (299484164).

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

149393916 is a wasteful number, since it uses less digits than its factorization.

149393916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800 (or 2792 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 149393916 is about 12222.6803934325. The cubic root of 149393916 is about 530.6126959651.

The spelling of 149393916 in words is "one hundred forty-nine million, three hundred ninety-three thousand, nine hundred sixteen".