154243953 has 16 divisors (see below), whose sum is σ = 236390400. Its totient is φ = 99282960.

The previous prime is 154243931. The next prime is 154243961. The reversal of 154243953 is 359342451.

It is not a de Polignac number, because 154243953 - 2¹⁰ = 154242929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154243993) 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, 97713 + ... + 99278.

It is an arithmetic number, because the mean of its divisors is an integer number (14774400).

Almost surely, 2^154243953 is an apocalyptic number.

It is an amenable number.

154243953 is a deficient number, since it is larger than the sum of its proper divisors (82146447).

154243953 is a wasteful number, since it uses less digits than its factorization.

154243953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197029 (or 197023 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 154243953 is about 12419.4989029349. The cubic root of 154243953 is about 536.2937252233.

The spelling of 154243953 in words is "one hundred fifty-four million, two hundred forty-three thousand, nine hundred fifty-three".