152138508 has 48 divisors (see below), whose sum is σ = 381515904. Its totient is φ = 47013120.

The previous prime is 152138501. The next prime is 152138509. The reversal of 152138508 is 805831251.

It is a happy number.

It is a super-2 number, since 2×152138508² = 46292251232932128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (152138501) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 8103 + ... + 19233.

It is an arithmetic number, because the mean of its divisors is an integer number (7948248).

Almost surely, 2^152138508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 152138508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190757952).

152138508 is an abundant number, since it is smaller than the sum of its proper divisors (229377396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152138508 is a wasteful number, since it uses less digits than its factorization.

152138508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222 (or 11220 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 152138508 is about 12334.4439680109. The cubic root of 152138508 is about 533.8423835907.

Adding to 152138508 its reverse (805831251), we get a palindrome (957969759).

The spelling of 152138508 in words is "one hundred fifty-two million, one hundred thirty-eight thousand, five hundred eight".