151447 has 4 divisors (see below), whose sum is σ = 152280. Its totient is φ = 150616.

The previous prime is 151433. The next prime is 151451. The reversal of 151447 is 744151.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 151447 - 2¹¹ = 149399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 151447.

It is not an unprimeable number, because it can be changed into a prime (151477) 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 3 ways as a sum of consecutive naturals, for example, 13 + ... + 550.

It is an arithmetic number, because the mean of its divisors is an integer number (38070).

151447 is a Friedman number, since it can be written as 11^5-7^4*4, using all its digits and the basic arithmetic operations.

2¹⁵¹⁴⁴⁷ is an apocalyptic number.

151447 is a deficient number, since it is larger than the sum of its proper divisors (833).

151447 is an equidigital number, since it uses as much as digits as its factorization.

151447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832.

The product of its digits is 560, while the sum is 22.

The square root of 151447 is about 389.1619200282. The cubic root of 151447 is about 53.3032338842.

Adding to 151447 its reverse (744151), we get a palindrome (895598).

Subtracting 151447 from its reverse (744151), we obtain a cube (592704 = 84³).

It can be divided in two parts, 15144 and 7, that added together give a palindrome (15151).

The spelling of 151447 in words is "one hundred fifty-one thousand, four hundred forty-seven".