150440146 has 4 divisors (see below), whose sum is σ = 225660222. Its totient is φ = 75220072.

The previous prime is 150440137. The next prime is 150440159. The reversal of 150440146 is 641044051.

150440146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80299521 + 70140625 = 8961^2 + 8375^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 150440146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37610035 + ... + 37610038.

Almost surely, 2^150440146 is an apocalyptic number.

150440146 is a deficient number, since it is larger than the sum of its proper divisors (75220076).

150440146 is an equidigital number, since it uses as much as digits as its factorization.

150440146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75220075.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 150440146 is about 12265.4044368704. The cubic root of 150440146 is about 531.8484714581.

Adding to 150440146 its reverse (641044051), we get a palindrome (791484197).

The spelling of 150440146 in words is "one hundred fifty million, four hundred forty thousand, one hundred forty-six".