154231943 has 4 divisors (see below), whose sum is σ = 154308768. Its totient is φ = 154155120.

The previous prime is 154231921. The next prime is 154231967. The reversal of 154231943 is 349132451.

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

It is a cyclic number.

It is not a de Polignac number, because 154231943 - 2⁸ = 154231687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154231993) 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, 35318 + ... + 39443.

It is an arithmetic number, because the mean of its divisors is an integer number (38577192).

Almost surely, 2^154231943 is an apocalyptic number.

154231943 is a deficient number, since it is larger than the sum of its proper divisors (76825).

154231943 is an equidigital number, since it uses as much as digits as its factorization.

154231943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76824.

The product of its digits is 12960, while the sum is 32.

The square root of 154231943 is about 12419.0153796507. The cubic root of 154231943 is about 536.2798055964.

The spelling of 154231943 in words is "one hundred fifty-four million, two hundred thirty-one thousand, nine hundred forty-three".