152812238 has 4 divisors (see below), whose sum is σ = 229218360. Its totient is φ = 76406118.

The previous prime is 152812217. The next prime is 152812241. The reversal of 152812238 is 832218251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 832218251 = 6761 ⋅123091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38203058 + ... + 38203061.

It is an arithmetic number, because the mean of its divisors is an integer number (57304590).

Almost surely, 2^152812238 is an apocalyptic number.

152812238 is a deficient number, since it is larger than the sum of its proper divisors (76406122).

152812238 is an equidigital number, since it uses as much as digits as its factorization.

152812238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76406121.

The product of its digits is 7680, while the sum is 32.

The square root of 152812238 is about 12361.7247178539. The cubic root of 152812238 is about 534.6292455580.

The spelling of 152812238 in words is "one hundred fifty-two million, eight hundred twelve thousand, two hundred thirty-eight".