154947 has 16 divisors (see below), whose sum is σ = 231840. Its totient is φ = 91392.

The previous prime is 154943. The next prime is 154981. The reversal of 154947 is 749451.

It is a happy number.

154947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 154947 - 2² = 154943 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (154943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1063 + ... + 1199.

It is an arithmetic number, because the mean of its divisors is an integer number (14490).

2¹⁵⁴⁹⁴⁷ is an apocalyptic number.

154947 is a deficient number, since it is larger than the sum of its proper divisors (76893).

154947 is a wasteful number, since it uses less digits than its factorization.

154947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its digits is 5040, while the sum is 30.

The square root of 154947 is about 393.6330778784. The cubic root of 154947 is about 53.7107302854.

It can be divided in two parts, 1549 and 47, that added together give a triangular number (1596 = T₅₆).

The spelling of 154947 in words is "one hundred fifty-four thousand, nine hundred forty-seven".