154385147 has 4 divisors (see below), whose sum is σ = 176440176. Its totient is φ = 132330120.

The previous prime is 154385141. The next prime is 154385149. The reversal of 154385147 is 741583451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154385147 - 2⁸ = 154384891 is a prime.

It is a super-2 number, since 2×154385147² = 47669547228423218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154385147.

It is not an unprimeable number, because it can be changed into a prime (154385141) 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, 11027504 + ... + 11027517.

It is an arithmetic number, because the mean of its divisors is an integer number (44110044).

Almost surely, 2^154385147 is an apocalyptic number.

154385147 is a deficient number, since it is larger than the sum of its proper divisors (22055029).

154385147 is an equidigital number, since it uses as much as digits as its factorization.

154385147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22055028.

The product of its digits is 67200, while the sum is 38.

The square root of 154385147 is about 12425.1819704985. The cubic root of 154385147 is about 536.4573153490.

The spelling of 154385147 in words is "one hundred fifty-four million, three hundred eighty-five thousand, one hundred forty-seven".