149745240 has 128 divisors (see below), whose sum is σ = 507556800. Its totient is φ = 39260160.

The previous prime is 149745217. The next prime is 149745257. The reversal of 149745240 is 42547941.

It is a happy number.

149745240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 149745195 and 149745204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64744 + ... + 67016.

Almost surely, 2^149745240 is an apocalyptic number.

149745240 is a gapful number since it is divisible by the number (10) 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 149745240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253778400).

149745240 is an abundant number, since it is smaller than the sum of its proper divisors (357811560).

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

149745240 is a wasteful number, since it uses less digits than its factorization.

149745240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354 (or 2344 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 149745240 is about 12237.0437606474. The cubic root of 149745240 is about 531.0283109167.

The spelling of 149745240 in words is "one hundred forty-nine million, seven hundred forty-five thousand, two hundred forty".