147791238 has 32 divisors (see below), whose sum is σ = 352498176. Its totient is φ = 40389888.

The previous prime is 147791233. The next prime is 147791239. The reversal of 147791238 is 832197741.

147791238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 147791238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147791233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75531 + ... + 77462.

It is an arithmetic number, because the mean of its divisors is an integer number (11015568).

Almost surely, 2^147791238 is an apocalyptic number.

147791238 is an abundant number, since it is smaller than the sum of its proper divisors (204706938).

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

147791238 is a wasteful number, since it uses less digits than its factorization.

147791238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153028.

The product of its digits is 84672, while the sum is 42.

The square root of 147791238 is about 12156.9419674522. The cubic root of 147791238 is about 528.7084226427.

The spelling of 147791238 in words is "one hundred forty-seven million, seven hundred ninety-one thousand, two hundred thirty-eight".