149547860 has 144 divisors (see below), whose sum is σ = 414771840. Its totient is φ = 43994880.

The previous prime is 149547859. The next prime is 149547889. The reversal of 149547860 is 68745941.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 555806 + ... + 556074.

It is an arithmetic number, because the mean of its divisors is an integer number (2880360).

Almost surely, 2^149547860 is an apocalyptic number.

149547860 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 149547860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207385920).

149547860 is an abundant number, since it is smaller than the sum of its proper divisors (265223980).

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

149547860 is a wasteful number, since it uses less digits than its factorization.

149547860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 149547860 is about 12228.9762449683. The cubic root of 149547860 is about 530.7948912459.

The spelling of 149547860 in words is "one hundred forty-nine million, five hundred forty-seven thousand, eight hundred sixty".