150142178 has 4 divisors (see below), whose sum is σ = 225213270. Its totient is φ = 75071088.

The previous prime is 150142177. The next prime is 150142231. The reversal of 150142178 is 871241051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 871241051 = 257 ⋅3390043.

It can be written as a sum of positive squares in only one way, i.e., 146482609 + 3659569 = 12103^2 + 1913^2 .

It is a super-2 number, since 2×150142178² = 45085347229167368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 150142178.

It is not an unprimeable number, because it can be changed into a prime (150142177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37535543 + ... + 37535546.

Almost surely, 2^150142178 is an apocalyptic number.

150142178 is a deficient number, since it is larger than the sum of its proper divisors (75071092).

150142178 is an equidigital number, since it uses as much as digits as its factorization.

150142178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75071091.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 150142178 is about 12253.2517316833. The cubic root of 150142178 is about 531.4971056570.

The spelling of 150142178 in words is "one hundred fifty million, one hundred forty-two thousand, one hundred seventy-eight".