152138122 has 4 divisors (see below), whose sum is σ = 228207186. Its totient is φ = 76069060.

The previous prime is 152138093. The next prime is 152138131. The reversal of 152138122 is 221831251.

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., 133656721 + 18481401 = 11561^2 + 4299^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38034529 + ... + 38034532.

Almost surely, 2^152138122 is an apocalyptic number.

152138122 is a deficient number, since it is larger than the sum of its proper divisors (76069064).

152138122 is an equidigital number, since it uses as much as digits as its factorization.

152138122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76069063.

The product of its digits is 960, while the sum is 25.

The square root of 152138122 is about 12334.4283207614. The cubic root of 152138122 is about 533.8419321088.

Adding to 152138122 its reverse (221831251), we get a palindrome (373969373).

The spelling of 152138122 in words is "one hundred fifty-two million, one hundred thirty-eight thousand, one hundred twenty-two".