151281338 has 8 divisors (see below), whose sum is σ = 244377588. Its totient is φ = 69822144.

The previous prime is 151281337. The next prime is 151281343. The reversal of 151281338 is 833182151.

It can be written as a sum of positive squares in 2 ways, for example, as 115197289 + 36084049 = 10733^2 + 6007^2 .

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 (151281337) by changing a digit.

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, 2909231 + ... + 2909282.

Almost surely, 2^151281338 is an apocalyptic number.

151281338 is a deficient number, since it is larger than the sum of its proper divisors (93096250).

151281338 is a wasteful number, since it uses less digits than its factorization.

151281338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818528.

The product of its digits is 5760, while the sum is 32.

The square root of 151281338 is about 12299.6478811387. The cubic root of 151281338 is about 532.8379134652.

The spelling of 151281338 in words is "one hundred fifty-one million, two hundred eighty-one thousand, three hundred thirty-eight".