45147238 has 8 divisors (see below), whose sum is σ = 67900680. Its totient is φ = 22513680.

The previous prime is 45147233. The next prime is 45147241. The reversal of 45147238 is 83274154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45147233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29023 + ... + 30538.

It is an arithmetic number, because the mean of its divisors is an integer number (8487585).

Almost surely, 2^45147238 is an apocalyptic number.

45147238 is a deficient number, since it is larger than the sum of its proper divisors (22753442).

45147238 is a wasteful number, since it uses less digits than its factorization.

45147238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59942.

The product of its digits is 26880, while the sum is 34.

The square root of 45147238 is about 6719.1694427213. The cubic root of 45147238 is about 356.0768413433.

The spelling of 45147238 in words is "forty-five million, one hundred forty-seven thousand, two hundred thirty-eight".