154047 has 4 divisors (see below), whose sum is σ = 205400. Its totient is φ = 102696.

The previous prime is 154043. The next prime is 154057. The reversal of 154047 is 740451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740451 = 3 ⋅246817.

It is not a de Polignac number, because 154047 - 2² = 154043 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25672 + ... + 25677.

It is an arithmetic number, because the mean of its divisors is an integer number (51350).

2¹⁵⁴⁰⁴⁷ is an apocalyptic number.

154047 is a deficient number, since it is larger than the sum of its proper divisors (51353).

154047 is an equidigital number, since it uses as much as digits as its factorization.

154047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51352.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 154047 is about 392.4882163836. The cubic root of 154047 is about 53.6065364792.

Adding to 154047 its reverse (740451), we get a palindrome (894498).

The spelling of 154047 in words is "one hundred fifty-four thousand, forty-seven".