149928075 has 54 divisors (see below), whose sum is σ = 295223292. Its totient is φ = 72679200.

The previous prime is 149928071. The next prime is 149928089. The reversal of 149928075 is 570829941.

It is not a de Polignac number, because 149928075 - 2² = 149928071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 149928075.

It is not an unprimeable number, because it can be changed into a prime (149928071) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 24472 + ... + 29978.

It is an arithmetic number, because the mean of its divisors is an integer number (5467098).

Almost surely, 2^149928075 is an apocalyptic number.

149928075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149928075 is a deficient number, since it is larger than the sum of its proper divisors (145295217).

149928075 is a wasteful number, since it uses less digits than its factorization.

149928075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5545 (or 5526 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 149928075 is about 12244.5120360103. The cubic root of 149928075 is about 531.2443468833.

The spelling of 149928075 in words is "one hundred forty-nine million, nine hundred twenty-eight thousand, seventy-five".