154018913 has 8 divisors (see below), whose sum is σ = 159640680. Its totient is φ = 148417920.

The previous prime is 154018889. The next prime is 154018957. The reversal of 154018913 is 319810451.

It can be written as a sum of positive squares in 4 ways, for example, as 64754209 + 89264704 = 8047^2 + 9448^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 154018913 - 2¹⁴ = 154002529 is a prime.

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 154018913.

It is not an unprimeable number, because it can be changed into a prime (154018973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10781 + ... + 20597.

It is an arithmetic number, because the mean of its divisors is an integer number (19955085).

Almost surely, 2^154018913 is an apocalyptic number.

It is an amenable number.

154018913 is a deficient number, since it is larger than the sum of its proper divisors (5621767).

154018913 is an equidigital number, since it uses as much as digits as its factorization.

154018913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10387.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 154018913 is about 12410.4356490818. The cubic root of 154018913 is about 536.0327829971.

The spelling of 154018913 in words is "one hundred fifty-four million, eighteen thousand, nine hundred thirteen".