154230551 has 4 divisors (see below), whose sum is σ = 157817352. Its totient is φ = 150643752.

The previous prime is 154230539. The next prime is 154230577. The reversal of 154230551 is 155032451.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154230551 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 154230551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154235551) 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, 1793336 + ... + 1793421.

It is an arithmetic number, because the mean of its divisors is an integer number (39454338).

Almost surely, 2^154230551 is an apocalyptic number.

154230551 is a deficient number, since it is larger than the sum of its proper divisors (3586801).

154230551 is an equidigital number, since it uses as much as digits as its factorization.

154230551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586800.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 154230551 is about 12418.9593364340. The cubic root of 154230551 is about 536.2781922174.

The spelling of 154230551 in words is "one hundred fifty-four million, two hundred thirty thousand, five hundred fifty-one".