151005506 has 4 divisors (see below), whose sum is σ = 226508262. Its totient is φ = 75502752.

The previous prime is 151005497. The next prime is 151005529. The reversal of 151005506 is 605500151.

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., 148474225 + 2531281 = 12185^2 + 1591^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37751375 + ... + 37751378.

Almost surely, 2^151005506 is an apocalyptic number.

151005506 is a deficient number, since it is larger than the sum of its proper divisors (75502756).

151005506 is an equidigital number, since it uses as much as digits as its factorization.

151005506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75502755.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 151005506 is about 12288.4297613650. The cubic root of 151005506 is about 532.5138744576.

Adding to 151005506 its reverse (605500151), we get a palindrome (756505657).

The spelling of 151005506 in words is "one hundred fifty-one million, five thousand, five hundred six".