75150018 has 20 divisors (see below), whose sum is σ = 168392070. Its totient is φ = 25049952.

The previous prime is 75150001. The next prime is 75150043. The reversal of 75150018 is 81005157.

It can be written as a sum of positive squares in only one way, i.e., 61732449 + 13417569 = 7857^2 + 3663^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 75149973 and 75150000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 231783 + ... + 232106.

Almost surely, 2^75150018 is an apocalyptic number.

75150018 is an abundant number, since it is smaller than the sum of its proper divisors (93242052).

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

75150018 is a wasteful number, since it uses less digits than its factorization.

75150018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463903 (or 463894 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 75150018 is about 8668.9110042727. The cubic root of 75150018 is about 421.9973233435.

The spelling of 75150018 in words is "seventy-five million, one hundred fifty thousand, eighteen".