154242393 has 16 divisors (see below), whose sum is σ = 215218176. Its totient is φ = 98073360.

The previous prime is 154242383. The next prime is 154242427. The reversal of 154242393 is 393242451.

It is not a de Polignac number, because 154242393 - 2¹⁸ = 153980249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154242353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22278 + ... + 28368.

It is an arithmetic number, because the mean of its divisors is an integer number (13451136).

Almost surely, 2^154242393 is an apocalyptic number.

It is an amenable number.

154242393 is a deficient number, since it is larger than the sum of its proper divisors (60975783).

154242393 is a wasteful number, since it uses less digits than its factorization.

154242393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484.

The product of its digits is 25920, while the sum is 33.

The square root of 154242393 is about 12419.4360983098. The cubic root of 154242393 is about 536.2919172193.

The spelling of 154242393 in words is "one hundred fifty-four million, two hundred forty-two thousand, three hundred ninety-three".