154099073 has 4 divisors (see below), whose sum is σ = 154208340. Its totient is φ = 153989808.

The previous prime is 154099061. The next prime is 154099079. The reversal of 154099073 is 370990451.

It is a happy number.

154099073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16459249 + 137639824 = 4057^2 + 11732^2 .

It is a cyclic number.

It is not a de Polignac number, because 154099073 - 2⁶ = 154099009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154099079) 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, 52490 + ... + 55347.

It is an arithmetic number, because the mean of its divisors is an integer number (38552085).

Almost surely, 2^154099073 is an apocalyptic number.

It is an amenable number.

154099073 is a deficient number, since it is larger than the sum of its proper divisors (109267).

154099073 is a wasteful number, since it uses less digits than its factorization.

154099073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109266.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 154099073 is about 12413.6647691163. The cubic root of 154099073 is about 536.1257606166.

The spelling of 154099073 in words is "one hundred fifty-four million, ninety-nine thousand, seventy-three".