147851138 has 4 divisors (see below), whose sum is σ = 221776710. Its totient is φ = 73925568.

The previous prime is 147851131. The next prime is 147851147. The reversal of 147851138 is 831158741.

It is a happy number.

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., 145757329 + 2093809 = 12073^2 + 1447^2 .

It is not an unprimeable number, because it can be changed into a prime (147851131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36962783 + ... + 36962786.

Almost surely, 2^147851138 is an apocalyptic number.

147851138 is a deficient number, since it is larger than the sum of its proper divisors (73925572).

147851138 is an equidigital number, since it uses as much as digits as its factorization.

147851138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73925571.

The product of its digits is 26880, while the sum is 38.

The square root of 147851138 is about 12159.4053308540. The cubic root of 147851138 is about 528.7798417546.

The spelling of 147851138 in words is "one hundred forty-seven million, eight hundred fifty-one thousand, one hundred thirty-eight".