154124993 has 8 divisors (see below), whose sum is σ = 168289536. Its totient is φ = 139986000.

The previous prime is 154124989. The next prime is 154125011. The reversal of 154124993 is 399421451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 154124993 - 2² = 154124989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154124923) 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 7 ways as a sum of consecutive naturals, for example, 7568 + ... + 19118.

It is an arithmetic number, because the mean of its divisors is an integer number (21036192).

Almost surely, 2^154124993 is an apocalyptic number.

It is an amenable number.

154124993 is a deficient number, since it is larger than the sum of its proper divisors (14164543).

154124993 is a wasteful number, since it uses less digits than its factorization.

154124993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775.

The product of its digits is 38880, while the sum is 38.

The square root of 154124993 is about 12414.7087360115. The cubic root of 154124993 is about 536.1558183372.

The spelling of 154124993 in words is "one hundred fifty-four million, one hundred twenty-four thousand, nine hundred ninety-three".