433147138 has 4 divisors (see below), whose sum is σ = 649720710. Its totient is φ = 216573568.

The previous prime is 433147093. The next prime is 433147147. The reversal of 433147138 is 831741334.

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., 415059129 + 18088009 = 20373^2 + 4253^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108286783 + ... + 108286786.

Almost surely, 2^433147138 is an apocalyptic number.

433147138 is a deficient number, since it is larger than the sum of its proper divisors (216573572).

433147138 is a wasteful number, since it uses less digits than its factorization.

433147138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216573571.

The product of its digits is 24192, while the sum is 34.

The square root of 433147138 is about 20812.1872468994. The cubic root of 433147138 is about 756.6211604486.

The spelling of 433147138 in words is "four hundred thirty-three million, one hundred forty-seven thousand, one hundred thirty-eight".