152224138 has 8 divisors (see below), whose sum is σ = 249094080. Its totient is φ = 69192780.

The previous prime is 152224129. The next prime is 152224139. The reversal of 152224138 is 831422251.

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

It is not an unprimeable number, because it can be changed into a prime (152224139) 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, 3459618 + ... + 3459661.

It is an arithmetic number, because the mean of its divisors is an integer number (31136760).

Almost surely, 2^152224138 is an apocalyptic number.

152224138 is a deficient number, since it is larger than the sum of its proper divisors (96869942).

152224138 is a wasteful number, since it uses less digits than its factorization.

152224138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6919292.

The product of its digits is 3840, while the sum is 28.

The square root of 152224138 is about 12337.9146536195. The cubic root of 152224138 is about 533.9425211784.

Adding to 152224138 its reverse (831422251), we get a palindrome (983646389).

The spelling of 152224138 in words is "one hundred fifty-two million, two hundred twenty-four thousand, one hundred thirty-eight".