152181438 has 8 divisors (see below), whose sum is σ = 304362888. Its totient is φ = 50727144.

The previous prime is 152181401. The next prime is 152181479. The reversal of 152181438 is 834181251.

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

152181438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 152181399 and 152181408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12681781 + ... + 12681792.

It is an arithmetic number, because the mean of its divisors is an integer number (38045361).

Almost surely, 2^152181438 is an apocalyptic number.

152181438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

152181438 is a wasteful number, since it uses less digits than its factorization.

152181438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25363578.

The product of its digits is 7680, while the sum is 33.

The square root of 152181438 is about 12336.1840939571. The cubic root of 152181438 is about 533.8925915635.

The spelling of 152181438 in words is "one hundred fifty-two million, one hundred eighty-one thousand, four hundred thirty-eight".